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Boss Reducer NSN 4730-00-640-5040

Item Description

A straight fitting having a boss connection of a different size at each end. Both connections have external 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. Excludes bushing (as modified).

NSN 4730-00-640-5040 NSN: 4730-00-640-5040

Features and Characteristics

Thread Class
3a all ends
Reducer Type
Concentric
End Application
Used on boeing vertol cargo transport helicopter, model ch-47
Connection Style
External seat for gasket seal (boss) all ends
Connection Type
Threaded external boss all ends
Thready Qty Per Inch (tpi)
12 1st end
Thread Size
1.062 inches 1st end
Nominallength
1.531 inches
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t6 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 2 military specification single treatment response
Thread Series Designator
Unjf 2nd end
Specification Data
96906-ms21916 government standard
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
006405040
NSN
4730006405040

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS21916D12-6
Cage Code:
96906
Status:
A
MSDS:
Part Number:
ER919D12-6
Cage Code:
79470
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7609000000
  • NAICS: 332919
  • SITC: 68427
  • Description: Aluminum tube or pipe fittings (couplings,elbows sleeves)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 4730-00-640-5040
What are the manufacturers of nsn 4730006405040?
Does this nsn 4730006405040 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730006405040
A straight fitting having a boss connection of a different size at each end. both connections have external 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. excludes bushing (as modified).
Does nsn 4730006405040 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730006405040 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730006405040?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
23541
FIIG:
A080B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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