fittings › straight pipe to boss adapters
MS21915-8-4
Military Standard Straight Pipe To Boss Adapter
Description
Thread Size: 0-11/8, MS21915 series fitting
Specifications
| Connection Style | Flareless (tube) 1st end, Gasket seal (boss) 2nd end |
|---|---|
| Connection Type | Threaded external tube 1st end, Threaded internal boss 2nd end |
| End Application | Aircraft application |
| Material | Steel |
| Nominallength | 1.484 |
| Outside Diameter Tube Accommodated | 0.250 inches 1st end |
| Seat Angle | 12.0 degrees 1st end |
| Specification Data | 96906-ms21915 government standard |
| Surface Treatment | Cadmium |
| Thread Class | 3a 1st end, 3b 2nd end |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) all ends |
| Thread Size | 0.438 inches 1st end, 0.750 inches 2nd end |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21915-8-4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error