The Ring,retaining, cataloged under National Stock Number 5325-00-453-0227, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-453-0227 |
| Primary Part Number | 102521609 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Diameter | 0.032 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.494 INCHES NOMINAL IN |
| Inside Diameter | 0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL ROUND |
| 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 |
|---|---|
| 102521609 PRIMARY | Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk (GBR) |
| 1-02521-609 | Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk (GBR) |
| Reference | Meaning |
|---|---|
| 99-1448087 | 6/9 Informative reference only U.S. Government activity |
NSN 5325-00-453-0227 is a Ring,retaining, manufactured by Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-453-0227 has 2 manufacturer part numbers on file: 102521609 (Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk), 1-02521-609 (Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk).
Key specifications for 102521609: Usage Design: EXTERNAL; Material Diameter: 0.032 INCHES NOMINAL IN; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.494 INCHES NOMINAL IN. 8 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.