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Tube Fitting Locknut NSN 4730-00-277-5091

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 4730-00-277-5091 NSN: 4730-00-277-5091

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Features and Characteristics

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Tube fitting locknut
Nut Height
0.438 inches
Width Across Flats
2.188 inches
Thread Series
Unj
Packing Recess Diameter
2.104 inches
Packing Recess Depth
0.054 inches
Thready Qty Per Inch (tpi)
12
Thread Size
1.875 inches
Tube Outside Diameter
1.500 inches
Special Features
End item: grumman a-10 aircraft
Material
Aluminum alloy 2014 or aluminum alloy 2024
Material Specification
Qq-a-225/4, ty federal specification single material response or qq-a-225/6, ty or t851 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 and 81349-mil-f-5509 government specification
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
002775091
NSN
4730002775091

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AN6289D24
Cage Code:
14397
Status:
A
MSDS:
Part Number:
AS5179D24
Cage Code:
81343
Status:
A
MSDS:
Part Number:
27-81406-13
Cage Code:
14170
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4730-00-277-5091
What are the manufacturers of nsn 4730002775091?
Does this nsn 4730002775091 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730002775091
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 4730002775091 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730002775091 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730002775091?
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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