The Ring,retaining, cataloged under National Stock Number 5325-01-523-3443, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Div Kingston Operations. Government technical data includes 4 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-523-3443 |
| Primary Part Number | 505025 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Huck International, Inc. Div Kingston Operations |
| Status | ACTIVE |
| Outside Diameter | 4.284 INCHES NOMINAL IN |
| Inside Diameter | 4.125 INCHES NOMINAL IN |
| Ring Style | SPIRAL |
| Material | STEEL CORROSION RESISTING AND 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 |
|---|---|
| 505025 PRIMARY | Huck International, Inc. Div Kingston Operations (USA) |
NSN 5325-01-523-3443 is a Ring,retaining, manufactured by Huck International, Inc. Div Kingston Operations, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-523-3443 has 1 manufacturer part number on file: 505025 (Huck International, Inc. Div Kingston Operations).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-630-3624. Verify interchangeability with system specifications before substitution.
Key specifications for 505025: Outside Diameter: 4.284 INCHES NOMINAL IN; Inside Diameter: 4.125 INCHES NOMINAL IN; Ring Style: SPIRAL; Material: STEEL CORROSION RESISTING AND STEEL. 4 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.