fittings › boss reducers
MS21916-6-4
Military Standard Boss Reducer
Description
tube 3/8" to 1/4", reducer, external thread, flareless tube, carbon steel, MS21916 series fitting
Specifications
| Connection Style | External seat for gasket seal (boss) all ends |
|---|---|
| Connection Type | Threaded external boss all ends |
| Material | Steel |
| Material Specification | Qq-a-367 federal specification single material response or astm a576-677 assn standard single material response or mil-s-6758 military specification single material response |
| Maximum Operating Pressure | 3000 pounds per square inch single response |
| Maximum Operating Temp | 275 degrees fahrenheit single response |
| Media For Which Designed | Hydraulic fluid single response |
| Nominallength | 1.219 |
| Specification Data | 96906-ms21916 government standard |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Class 2 federal specification single treatment response type 2 qq-p-416 |
| 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 2nd end, 0.562 inches 1st end |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error