The Ring,retaining, cataloged under National Stock Number 5325-00-159-3904, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-159-3904 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.735 INCHES NOMINAL IN |
| Major Thickness | 0.078 INCHES NOMINAL IN |
| Inside Diameter | 0.579 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| XSC127SS | 3/9 Design control — primary reference Mellowes Co Div of Charter Mfg Co Inc |
NSN 5325-00-159-3904 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-159-3904: Material Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Cross-Sectional Shape Style: RECTANGULAR. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.