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MS21921V4P
Military Standard Tube Coupling Nut
Description
Nut
Specifications
| Alternate Part Number | MS21921-4 |
|---|---|
| Material | Steel |
| Nut Height | 0.710 inches minimum and 0.730 inches maximum |
| Nut Style | Tube coupling |
| Part Name Assigned By Controlling Agency | Nut,sleeve coupling,flareless |
| Seat Angle | 45.0 degrees |
| Special Features | Corrosion resistant steel (15-5) w/ cadmium plating |
| Specification Data | 81343 - as21921 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNJF |
| Thread Size | 0.438 |
| Weight | 0.03 lb |
| Width Across Flats | 0.562 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21921V4P
- MS21921V5P
- MS21921V8P
- MS21921V10P
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS21921V4P — functionally equivalent.
- MS21921-4 Listed alternate 7/16-20 · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS21921-4D MS 7/16-20 · Aluminum
- MS21921-4J MS 7/16-20 · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error