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MS21921-5J
Military Standard Tube Coupling Nut
Description
tube outside diameter: 5/16", sleeve coupling flareless, corrosion resistant steel, MS21921 series nut
Specifications
| Material | CRES |
|---|---|
| Material Specification | Class 304 federal specification single material response qq-s-763 |
| Nut Height | 0.760 |
| Nut Style | Tube coupling |
| Seat Angle | 45.00 degrees |
| Specification Data | 96906-ms21921 government standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Mil-s-5002 military specification single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.500 |
| Width Across Flats | 0.625 |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS21921-5 MS 1/2-20 · Steel
- MS21921-5D MS 1/2-20 · Aluminum
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Catalog data updated 2026-07-05. Report a data error