The Ring,retaining, cataloged under National Stock Number 5325-01-337-9966, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-337-9966 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 2ND MATERIAL RESPONSE AND AMS 5688 ASSN STD 3RD MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 4TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 3.073 INCHES MINIMUM AND 3.098 INCHES MAXIMUM IN |
| Specification/standard Data | 81349--27426-3171D GOVERNMENT SPECIFICATION |
| Major Thickness | 0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 2.737 INCHES MINIMUM AND 2.762 INCHES MAXIMUM 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 |
|---|---|
| M27426-3171 D | 5/1 Secondary reference U.S. Government activity |
| M2742630171D | 2/2 Government specification standardization U.S. Government activity |
NSN 5325-01-337-9966 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-337-9966: Usage Design: INTERNAL; Material Document and Classification: SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 2ND MATERIAL RESPONSE AND AMS 5688 ASSN STD 3RD MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 4TH MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 3.073 INCHES MINIMUM AND 3.098 INCHES MAXIMUM IN. 11 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.