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Boss Elbow NSN 4730-00-277-6431

Item Description

A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. The boss connections have external and/or internal machine threads (straight threads other than pipe or hose series), and are designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side or heel inlet(s). It is designed to join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. Excludes elbow, tube.

NSN 4730-00-277-6431 NSN: 4730-00-277-6431

Features and Characteristics

Thread Class
3b all ends
End Application
F-18 aircraft
Connection Style
Gasket seal (boss) all ends
Leg Length
1.344 inches all ends
Connection Type
Threaded internal boss all ends
Thready Qty Per Inch (tpi)
12 all ends
Thread Size
1.312 inches all ends
Flow Angle
45.0 degrees
Material
Steel comp 1137 or steel comp 4130 or steel comp 4140 or steel comp 1141
Material Specification
66 federal standard single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 military specification single treatment response outside
Thread Series Designator
Un all ends
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
002776431
NSN
4730002776431

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AN941D16
Cage Code:
88044
Status:
A
MSDS:
Part Number:
AN928D16
Cage Code:
88044
Status:
A
MSDS:
Part Number:
AS5191
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS4875
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS5191W16
Cage Code:
81343
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7307929000
  • NAICS: 332919
  • SITC: 67959
  • Description: Threaded elbows and bends of iron or steel (other than cast iron or stainless steel) for pipes and tubes
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 4730-00-277-6431
What are the manufacturers of nsn 4730002776431?
Does this nsn 4730002776431 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730002776431
A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. the boss connections have external and/or internal machine threads (straight threads other than pipe or hose series), and are designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. it may have side or heel inlet(s). it is designed to join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. excludes elbow, tube.
Does nsn 4730002776431 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730002776431 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730002776431?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22676
FIIG:
A080B0
App. Key:
A
Cond. Code:
1
Status:
A

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