MS21916D10-4 Boss Reducer
4730-00-640-5857
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Official Item Classification
- Name
- Boss Reducer
- Part Number
- MS21916D10-4
- (NSN) National Stock Number
- 4730-00-640-5857
- (FSG) Federal Supply Group
- 47 Pipe, Tubing, Hose, And Fittings
- (FSC) Federal Supply Classification
- 4730 Hose, Pipe, Tube, Lubrication and Railing Fittings
- (INC) Item Name Code
- 23541
- (FIIG) Federal Item Identification Guide
- A080B0
- Date
- 01/01/1961 (65 years ago)
3a all ends thread class, used on boeing vertol model ch-47 cargo transport helicopter; hellicopter, chinook, ch-47 end item identification, concentric reducer type, -65.0 fahrenheit 2nd response maximum operating temp, 225.0 fahrenheit 1st response maximum operating temp
Specs & Compatibility
3a all ends
concentric
-65.0 fahrenheit 2nd response
225.0 fahrenheit 1st response
used on boeing vertol model ch-47 cargo transport helicopter; hellicopter, chinook, ch-47
external seat for gasket seal (boss) all ends
threaded external boss all ends
3000.0 pounds per square inch single response
0.438 inches 2nd end
0.875 inches 1st end
feat
1.438 inches
weapon system essential
aluminum alloy 2024 overall
qq-a-225/6,t6 fed spec single material response overall
anodize overall
mil-a-8625,ty 2,cl 2 mil spec single treatment response overall
unjf all ends
96906-ms21916 government standard
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
SMS
0023541
Related Hardware Products
| Part Number | Description |
|---|---|
| ER919D10-4 | Boss Reducer |
| MS21916D10-4 | Boss Reducer |