fittings › threaded tube fitting plugs
MS21913-5
Military Standard Threaded Tube Fitting Plug
Description
outside diameter: 5/16", hex head, flareless tube, carbon steel, MS21913 series fitting
Specifications
| Connection Style | Flareless |
|---|---|
| End Application | Tf39-ge-1 (c-5a) aircraft brf engine |
| Head Height | Between 0.172 inches and 0.218 inches |
| Material | Steel |
| Overall Length | 0.671 |
| Specification Data | 96906-ms21913 government standard |
| Style Designator | Tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic) plug |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Class 2 federal specification single treatment response type 2 qq-p-416 |
| Thread Class | 3a external |
| Thread Direction | Right-hand external |
| Thread Pitch Diameters | +0.4919/+0.5000 inches external |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) external |
| Thread Size | 0.500 inches external |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS21913-5 — functionally equivalent.
- MS21913V5P Listed alternate 1/2 in · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS21913J5 MS 1/2 in · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error