The Ring,retaining, cataloged under National Stock Number 5325-01-143-7528, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-143-7528 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE |
| Strength Rating | ERR-060 |
| Material Document and Classification | MIL-S-46049 MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 6.212 INCHES MINIMUM AND 6.257 INCHES MAXIMUM IN |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Inside Diameter | 5.682 INCHES MINIMUM AND 5.727 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL |
| 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 |
|---|---|
| UR-600-CD | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-143-7528 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-143-7528: Usage Design: INTERNAL; Surface Treatment Document and Classification: QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE; Strength Rating: ERR-060; Material Document and Classification: MIL-S-46049 MIL SPEC SINGLE MATERIAL RESPONSE. 12 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.