Model: 7978-556R51PC23

Hexagon Plain Nut

Properties:

NSN
5310-00-768-0321
Part Number
7978-556R51PC23
Description
Nut,plain,hexagon
CAGE
81316

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 7978-556R51PC23 NSN 5310-00-768-0321

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01857
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

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 5310-00-768-0321 is a component of

  • Tomahawk Missile
  • B-1 Aircraft Support Equipment
  • Satellite An/gsc-39(v)1 Communications Terminal
  • Fire Pumps
  • Stream (std. Tensioned Replenishment At Sea Method)
  • Defense Communications Radio (9 Systems)
  • An-tcc-77) An/tps-068 An/tcc-76 Def Comm Meteorl (an/tmq-028
  • Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
  • Phoenix (aim-54) Air-to-air Missile
  • 000871609
  • Searchlight
  • 013498078
  • Signal Data Converter
  • 010631915
  • Flight Lin Test Set
  • 011178692
  • Training Device Gun Mount
  • 012546307
  • Transmitter Group
  • 013527234
  • Electronic Systems Test Set
  • 002755798
  • Shouldered Shaft
  • 010631574
  • Antenna Elevator Group
  • 001189661
  • Antenna Group
  • 010269621
  • Vpa Assembly
  • 007520603
  • Radar Set
  • 009420856
  • Radio Transmitter
  • 012554218
  • Receiver Group
  • 013511480
  • Data Processing Terminal
  • 004343644
  • Speech Equipment
  • 008920871
  • Radio Set
  • 005536061
  • Teletypewriter
  • 010924907
  • Radio Receiver-transmitter
  • 014373996
  • Semitrailer Mounted Electric Power Plant
  • 009442452
  • Radar Set
  • 013180641
  • Transition Unit Fra
  • 005628900
  • Video Amplifier
  • 010928074
  • Landing Control Central
  • 005575970
  • Teletypewriter Set
  • 013180642
  • Key Distribution Ce
  • 014352305
  • Communication Distribution Processor
  • 009499909
  • Radio Set Control Group
  • 013613888
  • Line Termination Unit
  • 013704912
  • Fire Fighting Trailer
  • 000239841
  • Liquid Argon-nitrogen-oxygen Storage Tank
  • 013704912
  • Fire Fighting Trailer
  • 013613887
  • Line Termination Unit
  • 009022548
  • Air Conditioner
  • 005663067
  • Signal Generator
  • 011083651
  • Electrical Power Test Set
  • 013704912
  • Fire Fighting Trailer
  • 013704912
  • Fire Fighting Trailer
  • 013867729
  • Aircraft Engine Maintenance Stand
  • 009594326
  • Remot Tone Receiver
  • 010288425
  • Multiplexer
  • 013658783
  • Audio Management System Processor
  • 010288364
  • High Speed Buffer
  • 013825833
  • Expandable Shelter
  • 009078300
  • Telegraph Terminal
  • 005382736
  • Semitrailer Mounted Petroleum Laboratory
  • 011481772
  • Meteorological Data
  • 013655599
  • Surveillance Information Processing Center
  • 013093039
  • Multiposition Maintenance Fixture Holder
  • 010288392
  • Manual Telephone Central Office
  • 010288393
  • Manual Telephone Central Office
  • 013167203
  • Aircraft Maintenance Fixture
  • 010321694
  • Telephone System
  • 013055870
  • Plastic Strip
  • 013557350
  • Electronic Communications Equipment Case
  • 011026307
  • Satellite C Central
  • 013659600
  • Status Indicator
  • 013655612
  • Data Distribution System
  • 013659601
  • Communications Processor
  • 012099146
  • Radar Set
  • 005924645
  • Air Conditioner
  • 013798884
  • Hydraulic Puller
  • 012679478
  • Radio Set
  • 012348499
  • Aircraft Engine Accessories Maintenance Stand
  • 013234779
  • Nonexpandable Shelter
  • 009082003
  • Control Transmitter
  • 012056213
  • Antenna
  • 014337063
  • Liquid Fuel Filter-separator
  • 004396242
  • Full Tracked Recovery Vehicle
  • 014075107
  • Hydraulic Pusher
  • 009083132
  • Interconnecting Box
  • 013701421
  • Signal Data Processor
  • 002214939
  • Transportable Shelter Lift Dolly Set
  • 013888686
  • Hydraulic Pusher
  • 010705685
  • Satellite Communica
  • 013706648
  • Manifold Valve Assembly
  • 006838595
  • Space Heater
  • 009083133
  • Interconnecting Box
  • 009857574
  • Distribution Box
  • 013746643
  • Satellite Signals Navigation Set
  • 014442717
  • Antenna Assembly
  • 013687798
  • Servo Cyli Manifold
  • 013113823
  • Mechanical Drive Housing
  • 010989110
  • Pressure Fluid Filter Unit
  • 011077155
  • Utility Truck
  • 014445370
  • Signal Scanner
  • 013260101
  • Signal Data Converter
  • 011186959
  • Aircraft Maintenance Fixture
  • 010709415
  • Radar Set
  • 014442719
  • Node Center Switch
  • 014450948
  • Operations Group
  • 014445385
  • Large Extension Nod
  • 014445393
  • Antenna Synchro
  • 013260710
  • Commu Switching Set
  • 011152869
  • Transformer Assembly
  • 013199032
  • Trailer Mounted Diesel Engine Generator Set
  • 007386342
  • Trailer Mounted Diesel Engine Generator Set
  • 012747387
  • Diesel Engine Generator Set
  • 012791609
  • Multiposition Maintenance Fixture Holder
  • 014513046
  • Power Supply
  • 009857899
  • Power Supply
  • 011135344
  • Communications Term
  • 012374392
  • Semitrailer Mounted Engine Test Stand
  • 010397629
  • Antenna
  • 007520603
  • Radar Set
  • 012747390
  • Diesel Engine Generator Set
  • 013260712
  • Communica Processor
  • 014450949
  • Operations Group
  • 001335879
  • Power Supply
  • 012169818
  • Aircraft Guided Missile Launcher
  • 009194800
  • Radio Teletyp Modem
  • 014460412
  • Low Probability Intercept-link Processor
  • 010647880
  • Electrical Special Purpose Cable Assembly
  • 011570996
  • Air Conditioner
  • 012099144
  • Radar Set
  • 010769947
  • Antenna Group
  • 002531513
  • Tactical Imagery In
  • 001342599
  • Telephone Set
  • 010776249
  • Communication System
  • 011560572
  • Ex Quick Erect Mast
  • 004396242
  • Full Tracked Recovery Vehicle
  • 009994935
  • Nonexpandable Shelter
  • 011571682
  • Power Distribution-
  • 002897515
  • Low Bed Semitrailer
  • 011448396
  • Aircraft Engine Maintenance Machining Fixture
  • 013881454
  • Communication System
  • 000090129
  • Antenna
  • 003079376
  • Radio Receiving Set
  • 007870304
  • Oscilloscope
  • 013293356
  • Digital Computer
  • 013134214
  • Trailer Mounted Electric Power Plant
  • 013875443
  • Cargo Trailer
  • 013294803
  • Lg Exten Node Switc
  • 011265557
  • Antenna
  • 002504381
  • Liquid Fuel Filter-separator
  • 013881464
  • Radio Set
  • 005190103
  • Power Supply
  • 013294805
  • Node Center Switch
  • 000186868
  • Portable Photographic Darkroom
  • 010079403
  • Satellite Communica
  • 009283382
  • Multiplexer
  • 010079401
  • Satellite Communica
  • 010828404
  • Voice Terminal
  • 013910187
  • Secu Voice Ky 99a
  • 000331389
  • Trailer Mounted Diesel Engine Generator Set
  • 013294807
  • Operations Group
  • 001387990
  • Radio Receiver-transmitter
  • 004020748
  • Motion Picture Camera
  • 009147054
  • Hydraulic System Components Test Stand
  • 014003110
  • Surveillance Information Processing Center
  • 013301864
  • Management Facility
  • 010480295
  • Angle Drive Unit
  • 013294811
  • Switching Group
  • 014003111
  • Surveillance Information Processing Center
  • 010079429
  • Antenna Group
  • 014003114
  • Surveillance Information Processing Center
  • 010123313
  • Liquid Fuel Filter-separator
  • 011236827
  • Cargo Truck
  • 012885510
  • Antenna Group
  • 010079427
  • Antenna Group
  • 013301865
  • Switching Group
  • 014003215
  • Surveillance Information Processing Center
  • 012466826
  • Telephone Set
  • 005430012
  • Telephone Set
  • 013301866
  • Operations Group
  • 001418050
  • Cargo Trailer
  • 010057864
  • Simulator Assembly
  • 010606690
  • Modem Test Set
  • 013134283
  • Trailer Mounted Diesel Engine Generator Set
  • 011722923
  • Amplifier-control Group
  • 014123314
  • Signal Processing Shelter
  • 004427119
  • Liquid Argon-nitrogen-oxygen Storage Tank
  • 013048597
  • Electron Tube Liquid Cooler
  • 014124386
  • Satellite Communications Shelter
  • 014125904
  • Transportable Relay Facility
  • 009037371
  • Tank Truck
  • 014125906
  • Data Link Communication Shelter
  • 013134215
  • Trailer Mounted Electric Power Plant
  • 012479118
  • Radio Receiver-transmitter
  • 013075414
  • Ky 99 Minterm
  • 008425326
  • Motorized Roller
  • 012484760
  • 014125877
  • Ground Tethered Satellite Relay Station
  • 008425326
  • Motorized Roller
  • 010100787
  • Trailer Mounted Bakery Plant
  • 014125875
  • Test Operator Shelter
  • 009350033
  • Radio Receiver-transmitter
  • 014125905
  • Satellite Communication System
  • 010414590
  • Self-propelled Medium Howitzer
  • 008425326
  • Motorized Roller
  • 013094494
  • Communications Modem
  • 010628194
  • Communicat Terminal
  • 011740272
  • Communication System Control Group
  • 014125907
  • Ground Tethered Satellite Relay System Deployment Kit
  • 009353850
  • Photographic Contact Printer
  • 013320741
  • Trailer Mounted Diesel Engine Generator Set
  • 000698795
  • Telegraph-telephone Signal Converter
  • 009355071
  • Radio Set
  • 012503719
  • Air Conditioner
  • 010887337
  • Antenna Assembly
  • 012512720
  • Antenna Group
  • 014147495
  • Data Link Processor
  • 014147501
  • Audio Management System Processor
  • 009355416
  • Air Conditioner
  • 014147500
  • Surveillance Information Processing Center
  • 014147496
  • File Server Processor
  • 014147503
  • Surveillance Information Processing Center
  • 012996035
  • Trailer Mounted Electric Power Plant
  • 004244370
  • Electrical Pulse Analyzer
  • 012512758
  • Optoelectronic Display
  • 013498064
  • Communications Central
  • 014147499
  • Direction Finding Processor
  • 014147498
  • Data Link Processor Interface
  • 014147506
  • Surveillance Information Processing Center
  • 014151245
  • Satellite Communication Subsystem
  • 001681477
  • Communications Central
  • 014147502
  • Surveillance Information Processing Center
  • 014162887
  • Antenna
  • 011178692
  • Training Device Gun Mount
  • 011178692
  • Training Device Gun Mount
  • 013134216
  • Trailer Mounted Electric Power Plant
  • 010920892
  • Nonexpandable Shelter
  • 011384746
  • Radar Tra Generator
  • 014151246
  • Trailer Mounted Communications Antenna
  • 014206621
  • Radio Set
  • 004884865
  • Aircraft Engine Accessories Maintenance Stand

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Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
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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