The Ring,retaining, cataloged under National Stock Number 5325-01-691-4555, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Tulsa Winch, Inc.. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-691-4555 |
| Primary Part Number | 21923 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Tulsa Winch, Inc. |
| Status | ACTIVE |
| Outside Diameter | 15.50 INCHES NOMINAL IN |
| 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 |
|---|---|
| 21923 PRIMARY | Tulsa Winch, Inc. (USA) |
NSN 5325-01-691-4555 is a Ring,retaining, manufactured by Tulsa Winch, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-691-4555 has 1 manufacturer part number on file: 21923 (Tulsa Winch, Inc.).
Key specifications for 21923: Outside Diameter: 15.50 INCHES NOMINAL IN; Special Features: 5/32 X 1/4; Part Name Assigned by Controlling Agency: RETAINING RING INT; End Item Identification: WINCH, HYDRAULIC. 1 specification is 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.