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Boss Reducer NSN 4730-00-978-6975

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 4730-00-978-6975 NSN: 4730-00-978-6975

Features and Characteristics

Thread Class
3b 1st end
Reducer Type
Concentric
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Gasket seal (boss) 1st end
Connection Type
Threaded internal boss 1st end
Thready Qty Per Inch (tpi)
12 all ends
Maximum Operating Pressure
1500.0 pounds per square inch single response
Thread Size
1.062 inches 2nd end
Nominallength
2.156 inches
Material
Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316 or steel comp 321
Material Specification
66 federal standard single material response
Media For Which Designed
Aeronautical fluid single response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification single treatment response
Thread Series Designator
Unj all ends
Specification Data
96906-ms21915 government standard and 81349-mil-f-18280 government specification
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
009786975
NSN
4730009786975

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS21915-20-12
Cage Code:
96906
Status:
A
MSDS:
Part Number:
AS21915
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS18280
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS21915J20-12
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MIL-F-18280
Cage Code:
81349
Status:
A
MSDS:
Part Number:
MS21915-20-12J
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: 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 4730-00-978-6975
What are the manufacturers of nsn 4730009786975?
Does this nsn 4730009786975 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730009786975
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 4730009786975 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730009786975 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730009786975?
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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