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Tube Fitting Locknut NSN 4730-00-277-6376

Item Description

An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.

NSN 4730-00-277-6376 NSN: 4730-00-277-6376

Features and Characteristics

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Tube fitting locknut
Nut Height
0.250 inches
End Application
Sikorsky cargo transport helicopter ch-54a and ch-54b
Width Across Flats
0.563 inches
Thread Series
Unf
Packing Recess Diameter
0.483 inches
Packing Recess Depth
0.037 inches
Thready Qty Per Inch (tpi)
24
Thread Size
0.312 inches
Tube Outside Diameter
0.125 inches
Material
Aluminum alloy 2014
Material Specification
Qq-a-225/4, alloy 2014, t6 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2, class 2 military specification single treatment response
Specification Data
88044-an6289 government standard
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
002776376
NSN
4730002776376

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AN628902
Cage Code:
88044
Status:
A
MSDS:
Part Number:
AS4841
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS5179
Cage Code:
81343
Status:
A
MSDS:
Part Number:
144681
Cage Code:
62983
Status:
A
MSDS:
Part Number:
AN6289D2
Cage Code:
30974
Status:
A
MSDS:
Part Number:
AS5179D02
Cage Code:
81343
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4730-00-277-6376
What are the manufacturers of nsn 4730002776376?
Does this nsn 4730002776376 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730002776376
An item with internal machine threads designed to fit the external machine threads of a tube fitting. it has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. the item, when installed, provides a method of locking and sealing the connection. see also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.
Does nsn 4730002776376 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730002776376 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730002776376?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
17645
FIIG:
A021A0
App. Key:
CW
Cond. Code:
1
Status:
A

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