The Ring,retaining, cataloged under National Stock Number 5325-01-349-0495, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Commercial. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-349-0495 |
| Primary Part Number | 3-52621-1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Commercial |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Ring Style | STRAIGHT GAP |
| Material | STEEL |
| 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 |
|---|---|
| 3-52621-1 PRIMARY | The Boeing Company Div Commercial (USA) |
| Reference | Meaning |
|---|---|
| 3-52621-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-349-0495 is a Ring,retaining, manufactured by The Boeing Company Div Commercial, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-349-0495 has 1 manufacturer part number on file: 3-52621-1 (The Boeing Company Div Commercial).
Key specifications for 3-52621-1: Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Outside Diameter: 3.000 INCHES NOMINAL IN; Ring Style: STRAIGHT GAP. 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.