The Ring,retaining, cataloged under National Stock Number 5325-01-176-9456, 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11 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-176-9456 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Criticality Code Justification | ZZZY |
| Cross-Sectional Shape Style | ROUNDED CORNERS |
| Outside Diameter | 4.875 INCHES NOMINAL IN |
| Major Thickness | 0.495 INCHES NOMINAL IN |
| Inside Diameter | 3.128 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 7255-242 PIECE 7 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 501-6603013PC11 | 5/1 Secondary reference Naval Sea Systems Command |
| 501-4458633PC14 | 5/1 Secondary reference U.S. Government activity |
| 501-6603013PC11 | 5/1 Secondary reference U.S. Government activity |
NSN 5325-01-176-9456 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-176-9456: Usage Design: INTERNAL; End Style: 90 DEGREE PARALLEL; Criticality Code Justification: ZZZY; Cross-Sectional Shape Style: ROUNDED CORNERS. 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.
NSN 5325-01-176-9456 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.