fittings › boss nipples
MS21902K4
Military Standard Boss Nipple
Description
corrosion resistant steel (316), tube outside 1/4", union, flareless tube
Specifications
| Connection Style | External seat for gasket seal (boss) all ends |
|---|---|
| Connection Type | Threaded external boss all ends |
| Material | CRES |
| Material Specification | 66,300 series fed std single material response |
| Maximum Operating Pressure | 3000.0 pounds per square inch single response |
| Maximum Operating Temp | -65.0 deg fahrenheit 2nd response, 275.0 deg fahrenheit 1st response |
| Media For Which Designed | Air 2nd response, Hydraulic fluid 1st response |
| Nominallength | 1.062 |
| Style Designator | Flareless (tube), Flareless w/ center wrenching facility |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Mil-f-14072,e300,ty 2 mil spec single treatment response outside, Mil-s-5002 mil spec single treatment response inside |
| Thread Class | 3a all ends |
| Thread Series Designator | Unjf all ends |
| Thread Size | 0.438 inches all ends |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21902K4
- MS21902K6
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21902K4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error