Model: MS21921-10D

Tube Coupling Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Fabrication Method
Any acceptable
Nut Style
Tube coupling
Nut Height
Between 0.970 inches and 0.990 inches
End Application
Ch-47 helicopter
Width Across Flats
1.000 inches
Length To Shoulder
Between 0.677 inches and 0.697 inches
Smallest Inside Diameter
Between 0.690 inches and 0.695 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
14
Thread Size
0.875 inches
Tube Outside Diameter
0.625 inches
Seat Angle
45.00 degrees
Material
Aluminum alloy
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
NSN
4730-00-555-8204
Part Number
MS21921-10D
Description
Nut,tube Coupling
CAGE
96906

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

Part MS21921-10D NSN 4730-00-555-8204

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03859
FIIG:
A021A0
Concept No.:
1
App. Key:
CX
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:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
013540
UFC:
05680
LTL:
70.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

End Items End applications NSN 4730-00-555-8204 is a component of

  • Ch-47 Helicopter
  • Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
  • Mh-53e Helicopter
  • Ah-1w Advance Attack Helicopter
  • Los Angeles Class Ssn (688)
  • B-2 Bomber (atb) Aircraft
  • Seawolf Class Ssn
  • Ah-64-d Longbow
  • U-2 Airframe
  • Submarine Atmosphere Control And Compressed Air/gas
  • Co/h2 Burner And Co2 Removal Systems
  • Ah 64 Airframe (rotary Wing Aircraft)
  • 011069519
  • Attack Helicopter
  • 011069519
  • Attack Helicopter
  • 011684260
  • Attack Helicopter
  • 011069519
  • Attack Helicopter
  • 011069519
  • Attack Helicopter
  • 011922478
  • Attack Helicopter
  • 011684259
  • Attack Helicopter

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Schedule B and Export
  • Schedule B: 7609000000
  • SITC: 68427
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Aluminum tube or pipe fittings (couplings,elbows sleeves)

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