The Ring,retaining, cataloged under National Stock Number 5325-01-563-7639, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Bossard Intl Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-563-7639 |
| Primary Part Number | 1572342 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Bossard Intl Inc |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Outside Diameter | 75.000 INCHES NOMINAL IN |
| Inside Diameter | 70.500 INCHES NOMINAL IN |
| Ring Style | EXTERNAL BOWED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 1572342 PRIMARY | Bossard Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| BN682 DIA75 | 5/9 Secondary reference Bossard Intl Inc |
NSN 5325-01-563-7639 is a Ring,retaining, manufactured by Bossard Intl Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-563-7639 has 1 manufacturer part number on file: 1572342 (Bossard Intl Inc).
Key specifications for 1572342: Usage Design: EXTERNAL; Outside Diameter: 75.000 INCHES NOMINAL IN; Inside Diameter: 70.500 INCHES NOMINAL IN; Ring Style: EXTERNAL BOWED. 5 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.