The Ring,retaining, cataloged under National Stock Number 5325-01-303-4919, 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12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-303-4919 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 39.8 ROCKWELL C MINIMUM AND 43.5 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 4.803 INCHES MINIMUM AND 4.838 INCHES MAXIMUM IN |
| Specification/standard Data | 81349-MIL-R-27426 MANUFACTURERS STANDARD |
| Major Thickness | 0.068 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN |
| Inside Diameter | 4.303 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| M2742630204D | 2/2 Government specification standardization U.S. Government activity |
| M27426-3204D | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
NSN 5325-01-303-4919 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-303-4919: Material Hardness Rating: 39.8 ROCKWELL C MINIMUM AND 43.5 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL. 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.