The Ring,retaining, cataloged under National Stock Number 5325-01-191-3513, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-191-3513 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| End Style | 90 DEGREE PARALLEL |
| Minor Thickness | 0.270 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/11, T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250/11, ALLOY 6061, T651 FED SPEC 2ND MATERIAL RESPONSE |
| Cross-Sectional Shape Style | BEVELED ONE OUTSIDE CORNER |
| Outside Diameter | 19.170 INCHES MINIMUM AND 19.320 INCHES MAXIMUM IN |
| Major Thickness | 0.310 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Inside Diameter | 6.370 INCHES MINIMUM AND 6.820 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 2507203-001 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5325-01-191-3513 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-191-3513: Usage Design: INTERNAL; Surface Treatment Document and Classification: MIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE; End Style: 90 DEGREE PARALLEL; Minor Thickness: 0.270 INCHES NOMINAL IN. 13 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.