The Ring,retaining, cataloged under National Stock Number 5325-01-250-0737, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-250-0737 |
| Primary Part Number | 176C2907 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Surface Treatment Document and Classification | MIL-A-8625, TYPE 2, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | WW-T-700/6, T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/8, ALLOY 6061, T6 FED SPEC 2ND MATERIAL RESPONSE AND QQ-A-200/8, ALLOY 6061, T6 FED SPEC 3RD MATERIAL RESPONSE AND QQ-A-250/11, T6 FED SPEC 4TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 3.030 INCHES MINIMUM AND 3.090 INCHES MAXIMUM IN |
| Major Thickness | 0.590 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN |
| Inside Diameter | 2.640 INCHES MINIMUM AND 2.700 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 176C2907 PRIMARY | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA) |
NSN 5325-01-250-0737 is a Ring,retaining, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-250-0737 has 1 manufacturer part number on file: 176C2907 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
Key specifications for 176C2907: Usage Design: EXTERNAL; Surface Treatment Document and Classification: MIL-A-8625, TYPE 2, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE; End Style: 90 DEGREE PARALLEL; Material Document and Classification: WW-T-700/6, T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/8, ALLOY 6061, T6 FED SPEC 2ND MATERIAL RESPONSE AND QQ-A-200/8, ALLOY 6061, T6 FED SPEC 3RD MATERIAL RESPONSE AND QQ-A-250/11, T6 FED SPEC 4TH MATERIAL RESPONSE. 12 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.