The Ring,retaining, cataloged under National Stock Number 5325-01-151-0622, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-151-0622 |
| Primary Part Number | 201058-6 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| Status | ACTIVE |
| Material Hardness Rating | 34.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 40.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM |
| Usage Design | INTERNAL |
| End Style | DIAGONAL PARALLEL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 4.251 INCHES NOMINAL IN |
| Inside Diameter | 4.125 INCHES MINIMUM AND 4.131 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPLIT |
| 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 |
|---|---|
| 201058-6 PRIMARY | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
NSN 5325-01-151-0622 is a Ring,retaining, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-151-0622 has 1 manufacturer part number on file: 201058-6 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
Key specifications for 201058-6: Material Hardness Rating: 34.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 40.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM; Usage Design: INTERNAL; End Style: DIAGONAL PARALLEL; Cross-Sectional Shape Style: DOUBLE OVAL. 9 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.