The Ring,retaining, cataloged under National Stock Number 5325-00-810-7976, 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11 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-810-7976 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | SAE 1060 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.025 INCHES NOMINAL IN |
| Inside Diameter | 0.221 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | CADMIUM |
| 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 |
|---|---|
| G650112-5 | 5/9 Secondary reference U.S. Government activity |
| 5100-25MF | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 9M189-25 | 5/9 Secondary reference The Boeing Company Div Defense |
| G650112-5 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 5100-25MF | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5325-00-810-7976 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-106-9398. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-810-7976: Material Hardness Rating: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Strength Rating: ERR-060; Material Document and Classification: SAE 1060 TO 1090 ASSN 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.