Model: 645403-4

Extended Washer Self-locking Nut

Special Features:

Flight safety critical aircraft part

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.420 inches
Lubrication
Soluble lubricant
Overall Height
Between 0.204 inches and 0.219 inches
Nut Style
Hexagon
Washer Thickness
0.019 inches
Width Across Flats
Between 0.304 inches and 0.316 inches
Tempurature Rating
800.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Criticality Code Justification
Feat
Material
Iron alloy 660
Material Specification
Ams 5525 assn standard single material response or ams 5735 assn standard single material response
Precious Material And Location
External surface silver
Surface Treatment
Silver
Surface Treatment Specification
Qq-s-365 federal specification single treatment response or ams 2410 assn standard single treatment response
NSN
5310-00-844-4872
Part Number
645403-4
Description
Nut,self-locking,extended Washer
CAGE

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 645403-4 NSN 5310-00-844-4872

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29730
FIIG:
A021A0
Concept No.:
1
App. Key:
BT
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
S
ESD:
ESD:
MMAC:
SX
CRITL:
F

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

End Items End applications NSN 5310-00-844-4872 is a component of

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  • Cowling
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  • Aircraft Submerged Pump
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  • Regulator Cover
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  • Slat Door Assembly
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  • Gun System Entrance Unit
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  • Gun System Exit Unit
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  • Ba Support Assembly
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  • Aircraft Environmental Control Valve Assembly
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  • Air Turbine Engine Starter
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  • Butterfly Valve
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  • Aircraft Engine Build-up Parts Kit
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  • Turbine Engine Main Fuel Control
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  • Linear Actuating Cylinder Assembly
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  • Slat Cover Assembly
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  • Slat Cover Assembly
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  • Slat Door Assembly
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  • Exhaust Pipe
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  • Aircraft Frame
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  • Aircraft Door
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  • Navigation Test Set
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  • Navigation Test Set
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  • Electronic Circuit Plug-in Unit Test Set
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  • Aircraft Structural Panel
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  • Bell Crank
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  • Aircraft Maintenance Fixture
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  • Forward Looking Inf
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  • Aircraft Cooling Turbine
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  • Astroinertial Instr
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  • Coolanol Cntrl Unit
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  • Aircraft Cargo Tie Down
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  • Yoke Assembly
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  • Sling Spreader
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  • Nonaircraft Gas Turbine Engine Compressor
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  • Aircraft Access Door
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  • Gas Turbine Engine Power Unit
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  • Aircraft Frame
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  • Ca Adjusting Device
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  • Aircraft Retractable Step Assembly
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  • Aircraft Cooling Turbine
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  • Ball Valve
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  • Turbine Engine Accessory Drive Gearbox
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  • Aircraft Gearbox Assembly
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  • Test Adapter
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  • Radiac Set
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  • Relay Assembly
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  • Nozzle Cont Exhaust
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  • Aircraft Door
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  • Signal Data Convert
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  • Signal Data Convert
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  • Aircraft Towbar
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  • Positioning Table
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  • Hoisting Beam
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  • Cable Retractor
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  • Ground Handling Equipment Cradle
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  • Turbine Engine Gearbox Housing
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  • Hydraulic Constant Speed Drive
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  • Scoop Disc Assembly
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  • Diesel Engine Generator Set
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  • Aircraft Structural Component Support
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  • Aircraft Mechanical Actuator
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  • Radar Transmitter
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  • Aircraft Fuel Tank Float Valve
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  • Differential Gear Unit
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  • Aircraft Door
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  • Aircraft Fairing
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  • Aircraft Fairing
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  • Turbine Engine Accessory Drive Gearbox
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  • Jet Engine Anti-icing Valve Assembly
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  • Compressor
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  • Aircraft Environmental Control Valve Assembly
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  • Aircraft Submerged Pump
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  • Turbine Engine Accessory Drive Gearbox
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  • Air Turbine Engine Starter
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  • Constant Speed Control Generator-transmission
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  • Semitrailer Mounted Photographic Laboratory
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  • Photographic Mainte
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  • Pho Storage Shelter
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  • Bra Hydraulic Valve
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  • Servocylinder
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  • Valve-solenoid
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  • Valve-solenoid
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  • Test Adapter Kit
  • 011471756
  • Pump Cover Assy
  • 011482109
  • Hydraulic Constant Speed Drive
  • 011490293
  • Nose Radome Plug
  • 011491450
  • Aircraft Submerged Pump
  • 011491451
  • Aircraft Submerged Pump
  • 011491452
  • Aircraft Submerged Pump
  • 011492746
  • Radome
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  • Automatic Gun Feeder
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  • Linear Electro-mechanical Actuator
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  • Aircraft Cargo Pallet
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  • Rotary Wing Blade
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  • Hydraulic Motor-pump Subassembly
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  • Multiple Gears Gearshaft
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  • Hydraulic Constant Speed Drive
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  • Aircraft Door
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  • Turbine Engine Accessory Drive Gearbox
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  • Bleed Air Duct Assembly
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  • Guided Missile Components Shipping And Storage Container
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  • Aircraft Windshield Panel
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  • Aircraft Windshield Panel
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  • Power Driven Hydraulic Pumping Unit
  • 010934541
  • Movable Canopy
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  • Movable Canopy
  • 010944563
  • Hydraulic Constant Speed Drive
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  • Head-up Display Unit
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  • Fluid Pressure Regulating Valve
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  • Turbine Engine Accessory Drive Gearbox
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  • Guided Missile Body Section
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  • Hydraulic Constant Speed Drive
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  • Movable Canopy
  • 011082780
  • Movable Canopy
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  • Attack Helicopter
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  • Aircraft Pylon
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  • Aircraft Pylon
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  • Radio Set
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  • Gear Box Assembly
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  • Hydraulic Servovalve
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  • Mi Support Assembly
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  • Attack Helicopter
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  • Attack Helicopter
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  • Aircraft Engine Build-up Parts Kit
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  • Nitrogen Ch Adapter
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  • Turbine Engine Gearbox Housing
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  • Turbine Assembly
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  • Aircraft Fairing
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  • Utility Truck
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  • Jet Engine Fuel Pump
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  • Aircraft Engine Build-up Parts Kit
  • 010692334
  • Aircraft Nosewheel Steering Unit
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  • Hydraulic Constant Speed Drive
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  • Fuselage Section
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  • Antenna
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  • Valve Assembly
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  • Mechanical Transmission
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  • Aircraft Engine Build-up Parts Kit
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  • Valve Assembly
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  • Loading Access Unit
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  • Aircraft Engine Build-up Parts Kit
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  • Aircraft Submerged Pump
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  • Nonaircraft Gas Turbine Engine
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  • Equalizer Assembly
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  • Observation Helicopter
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  • Aircraft Hydraulic Valve Assembly
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  • Air Turbine Engine Starter
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  • Aircraft Cabin Air Pressure Regulator
  • 010308869
  • Aircraft Fairing
  • 010334576
  • Hydraulic Motor-pump
  • 010348976
  • Constant Speed Drive Governor
  • 010350788
  • Pressure And Temperature Relief Valve
  • 010360290
  • Aircraft Rudder
  • 010365903
  • Aircraft Cooling Turbine
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  • Aircraft Engine Build-up Parts Kit
  • 010705150
  • Turbine Engine Gearbox Housing
  • 014566509
  • Turbine Engine Accessory Drive Gearbox
  • 010218120
  • Hydraulic Constant Speed Drive
  • 010222634
  • Aircraft Submerged Pump
  • 010223002
  • Radar Signal Simulator
  • 010268755
  • Aircraft Engine Build-up Parts Kit
  • 010282678
  • Turbine Engine Accessory Drive Gearbox
  • 012830077
  • Circuit Card Assembly
  • 010055845
  • Aircraft Cabin Air Pressure Regulator
  • 010061798
  • Aircraft Cabin Air Pressure Regulator
  • 010063214
  • Aircraft Cabin Air Pressure Regulator
  • 010074115
  • Butterfly Valve
  • 010081624
  • Aircraft Tip
  • 010081625
  • Aircraft Tip
  • 010092822
  • Turbine Engine Main Fuel Control
  • 010113440
  • Aircraft Engine Build-up Parts Kit
  • 013923286
  • Aircraft Gas Turbine Engine Augmenter Exhaust Nozzle
  • 010118063
  • Butterfly Valve
  • 010128595
  • Offset Panel
  • 010132741
  • Turbine Engine Starting Fuel Control
  • 010101296
  • Aircraft Engine Build-up Parts Kit
  • 005049112
  • Attack Helicopter
  • 005049112
  • Attack Helicopter
  • 009451228
  • Semitrailer Mounted Photographic Laboratory
  • 009485152
  • Hydraulic Constant Speed Drive
  • 012348659
  • Turbine Engine Gearbox Housing
  • 013199032
  • Trailer Mounted Diesel Engine Generator Set
  • 009030752
  • 7.62 Millimeter Machine Gun Aircraft Armament Pod
  • 009088501
  • Servocylinder
  • 009097276
  • Aircraft Tip
  • 011684260
  • Attack Helicopter
  • 009119775
  • Radar Set Control
  • 009157445
  • Retainer Assy
  • 009208756
  • Aircraft Wing Assembly
  • 008807004
  • Power Supply
  • 008899323
  • Slat Door Assembly
  • 008899324
  • Slat Door Assembly
  • 008997311
  • 7.62 Millimeter Machine Gun Aircraft Armament Pod
  • 008478537
  • Directional Control Linear Valve
  • 008526384
  • Air Turbine Engine Starter
  • 011483976
  • Radio Terminal Set
  • 008151903
  • Mounted Magnetic Compass
  • 008189170
  • Rotary Electro-mechanical Actuator
  • 008268284
  • Power Supply
  • 012348658
  • Turbine Engine Gearbox Housing
  • 007689642
  • Crash Seat Assembly
  • 011483977
  • Radio Terminal Set
  • 007870436
  • Aircraft Door
  • 007870471
  • Slat Door Assembly
  • 010204216
  • Observation Helicopter
  • 007961679
  • Aircraft Cabin Air Pressure Regulator
  • 007980902
  • Cowling
  • 007990148
  • Gas Turbine Engine Power Unit
  • 007328545
  • Aircraft Windshield Panel
  • 007328546
  • Aircraft Windshield Panel
  • 007383303
  • Aircraft Door
  • 007383304
  • Aircraft Door
  • 007572345
  • Butterfly Valve
  • 007573862
  • Hydraulic Constant Speed Drive
  • 007612851
  • Butterfly Valve
  • 007616266
  • Wing Landing Flap
  • 007087958
  • Vehicle Loading Ramp
  • 013537635
  • Turbo-shaft Aircraft Engine
  • 004651030
  • Diesel Engine Generator Set
  • 007181254
  • Axial Pistons Pump Unit
  • 002237548
  • Radio Set
  • 014524583
  • Butterfly Valve

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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