The Ring,retaining, cataloged under National Stock Number 5325-00-159-4636, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-159-4636 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Diameter | 0.054 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-W-470 FED SPEC 1ST MATERIAL RESPONSE AND AMS 5112 ASSN STD 2ND MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 0.531 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | OCTAGON |
| Material | STEEL UNS K08500 OR STEEL COMP 1090 |
| 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 |
|---|---|
| 694411 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-159-4636 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5995-01-201-7493. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-159-4636: Usage Design: INTERNAL; Material Diameter: 0.054 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN; Material Document and Classification: QQ-W-470 FED SPEC 1ST MATERIAL RESPONSE AND AMS 5112 ASSN STD 2ND MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 8 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.