The Ring,retaining, cataloged under National Stock Number 5325-00-252-8890, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-252-8890 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 84.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Major Thickness | 0.010 INCHES NOMINAL IN |
| Inside Diameter | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL SELF-LOCKING |
| 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 |
|---|---|
| 6000-62 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5325-00-252-8890 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
7 possible matches (shared part number, not a government interchangeability claim): 5340-00-839-1978, 5940-01-025-7766, 5905-01-239-4395. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-252-8890: Material Hardness Rating: 84.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Usage Design: INTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.623 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN. 9 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.