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Boss Reducer NSN 4730-00-913-3521

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 4730-00-913-3521 NSN: 4730-00-913-3521

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Features and Characteristics

Thread Class
3a all ends
Reducer Type
Concentric
End Application
Aircraft, stratolifter, c-135
Connection Style
External seat for gasket seal (boss) all ends
Connection Type
Threaded external boss all ends
Thread Size
0.750 inches 1st end
Criticality Code Justification
Feat
Nominallength
1.344 inches
Special Features
Weapon system essential
Material
Steel comp 316l
Material Specification
66 federal standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification single treatment response inside
Thread Series Designator
Unjf all ends
Specification Data
96906-ms21916 government standard
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
009133521
NSN
4730009133521

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AS18280
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS21916-8-6R
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS-21916-8-6R
Cage Code:
96906
Status:
A
MSDS:
Part Number:
MS21916-8-6S
Cage Code:
96906
Status:
A
MSDS:
Part Number:
AS-21916-8-6R
Cage Code:
96906
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7307994000
  • NAICS: 332919
  • SITC: 67959
  • Description: Other fittings nesoi of alloy steel not stainless
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 4730-00-913-3521
What are the manufacturers of nsn 4730009133521?
Does this nsn 4730009133521 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730009133521
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 4730009133521 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730009133521 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730009133521?
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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