The Ring,retaining, cataloged under National Stock Number 5325-00-282-7172, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-282-7172 |
| Primary Part Number | 42R2057-850 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Usage Design | INTERNAL OR EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Diameter | 0.050 INCHES NOMINAL IN |
| Material Document and Classification | MIL-W-16602 MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.943 INCHES NOMINAL IN |
| Inside Diameter | 1.843 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | COPPER ALLOY 510 |
| 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 |
|---|---|
| 42R2057-850 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 345433PC12 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 441114PC3 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5325-00-282-7172 is a Ring,retaining, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-282-7172 has 3 manufacturer part numbers on file: 42R2057-850 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 345433PC12 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 441114PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 42R2057-850: Usage Design: INTERNAL OR EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Diameter: 0.050 INCHES NOMINAL IN; Material Document and Classification: MIL-W-16602 MIL SPEC SINGLE MATERIAL RESPONSE. 10 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.