The Ring,retaining, cataloged under National Stock Number 5325-01-512-3852, 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10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-512-3852 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 0.375 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 0.512 ROCKWELL SUPERFICIAL 30-N MAXIMUM |
| Usage Design | INTERNAL |
| Strength Rating | ERR-060 |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.548 INCHES NOMINAL IN |
| Specification/standard Data | 96906-MS16625 GOVERNMENT SPECIFICATION |
| Major Thickness | 0.035 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| R271NAB0050NN643NNAA1 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| MS16625-5050 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-21248 | 4/1 Identification reference U.S. Government activity |
NSN 5325-01-512-3852 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-512-3852: Material Hardness Rating: 0.375 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 0.512 ROCKWELL SUPERFICIAL 30-N MAXIMUM; Usage Design: INTERNAL; Strength Rating: ERR-060; 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.