The Ring,retaining, cataloged under National Stock Number 5325-01-454-3722, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-454-3722 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 2.154 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-R-27426 GOVERNMENT SPECIFICATION |
| Major Thickness | 0.049 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN |
| Inside Diameter | 2.062 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Surface Treatment | CADMIUM AND CHROMATE |
| Test Data Document | 81349--27426-3151B SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 |
| Reference | Meaning |
|---|---|
| M2742630151B | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
NSN 5325-01-454-3722 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-454-3722: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 2.154 INCHES NOMINAL IN. 12 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.