The Ring,retaining, cataloged under National Stock Number 5325-00-281-6696, 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10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-281-6696 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Major Thickness | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Inside Diameter | 4.000 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
|---|---|
| D560 | 5/9 Secondary reference Koehring Co Lorain Div |
| D560 | 5/9 Secondary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
| 370V4010 | 3/9 Design control — primary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
NSN 5325-00-281-6696 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5980-01-391-0568, 5965-01-469-7401. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-281-6696: Material Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; End Style: 90 DEGREE PARALLEL; 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.