The Ring,retaining, cataloged under National Stock Number 5325-00-533-8903, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-533-8903 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | QQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 2ND MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUNDED CORNERS |
| Outside Diameter | 4.910 INCHES MINIMUM AND 4.945 INCHES MAXIMUM IN |
| Major Thickness | 0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN |
| Inside Diameter | 4.460 INCHES MINIMUM AND 4.495 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL STEPPED |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| UR475SP | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-533-8903 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-533-8903: Usage Design: INTERNAL; Strength Rating: ERR-060; Material Document and Classification: QQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 2ND MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUNDED CORNERS. 11 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.