fittings › boss nipples
MS21900J4
Adapter
Description
Adapter
Specifications
| Connection Style | External seat for gasket seal (boss) 2nd end, Flared with gasket seal (boss) 1st end |
|---|---|
| Connection Type | Threaded external boss all ends |
| Material | CRES |
| Material Specification | Qq-s-763 federal specification single material response |
| Maximum Operating Pressure | 3000 pounds per square inch single response |
| Maximum Operating Temp | 135.0 degrees celsius single response |
| NIIN | 01-022-4442 |
| NSN | 4730-01-022-4442 |
| Nominallength | 1.187 |
| Specification Data | 96906-ms21900 government standard |
| Style Designator | Flared and flareless with center wrenching facility |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Mil-s-5002 military specification single treatment response inside, Type 2 military specification single treatment response outside e300 mil-f-14072 |
| Thread Class | 3a all ends |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) all ends |
| Thread Size | 0.438 inches all ends |
| Weight | 0.046 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21900J4
- MS21900J5
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21900J4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error