The Ring,retaining, cataloged under National Stock Number 5325-00-458-4646, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Plc Div Defense (europe). Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-458-4646 |
| Primary Part Number | 5144-21H |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rolls-Royce Plc Div Defense (europe) |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Inside Diameter | 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | E |
| Surface Treatment | PASSIVATE |
| 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 |
|---|---|
| 5144-21H | Rolls-Royce Plc Div Defense (europe) (GBR) |
| Reference | Meaning |
|---|---|
| 5144-21H | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
| 5144-21H | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
NSN 5325-00-458-4646 is a Ring,retaining, manufactured by Rolls-Royce Plc Div Defense (europe), classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-458-4646 has 1 manufacturer part number on file: 5144-21H (Rolls-Royce Plc Div Defense (europe)).
Key specifications for 5144-21H: Usage Design: EXTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN; Inside Diameter: 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM 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.