The Ring,retaining, cataloged under National Stock Number 5325-01-090-9791, 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11 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-090-9791 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | MIL-P-16232, TYPE Z, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | FED STD 66 AISI 1066, 1069, 1070, 1072, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.273 INCHES MINIMUM AND 1.298 INCHES MAXIMUM IN |
| Major Thickness | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL INVERTED LUGS |
| Surface Treatment | PHOSPHATE ZINC |
| 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 |
|---|---|
| MS16627-3118 | 2/2 Government specification standardization U.S. Government activity |
| 5008-118-S-PP | 5/1 Secondary reference Rotor Clip Company, Inc. |
| 5008-118-S-PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 4000-118-ST-PA | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-090-9791 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-090-9791: Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Surface Treatment Document and Classification: MIL-P-16232, TYPE Z, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE; Material Document and Classification: FED STD 66 AISI 1066, 1069, 1070, 1072, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 FED STD SINGLE MATERIAL RESPONSE. 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.