The Ring,retaining, cataloged under National Stock Number 5325-01-305-0525, 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12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-305-0525 |
| 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 |
| Strength Rating | ERR-060 |
| Material Document and Classification | MIL-S-46049, COMP 1065 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-46049, COMP 1074 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-46049, COMP 1085 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-46049, COMP 1095 MIL SPEC 4TH MATERIAL RESPONSE AND AISI 1070 ASSN STD 5TH MATERIAL RESPONSE AND AISI 1074 ASSN STD 6TH MATERIAL RESPONSE AND AISI 1078 ASSN STD 7TH MATERIAL RESPONSE AND AISI 1080 ASSN STD 8TH MATERIAL RESPONSE AND AISI 1084 ASSN STD 9TH MATERIAL RESPONSE AND AISI 1085 ASSN STD 10TH MATERIAL RESPONSE AND AISI 1090 ASSN STD 11TH MATERIAL RESPONSE AND AISI 1095 ASSN STD 12TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 3.479 INCHES MINIMUM AND 3.509 INCHES MAXIMUM IN |
| Major Thickness | 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Inside Diameter | 3.103 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL COMP 1065 OR STEEL COMP 1074 OR STEEL COMP 1085 OR STEEL COMP 1095 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1090 |
| 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 |
|---|---|
| RR-334CD | 5/1 Secondary reference U.S. Government activity |
| M2742630179B | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
NSN 5325-01-305-0525 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-305-0525: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Strength Rating: ERR-060; Material Document and Classification: MIL-S-46049, COMP 1065 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-46049, COMP 1074 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-46049, COMP 1085 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-46049, COMP 1095 MIL SPEC 4TH MATERIAL RESPONSE AND AISI 1070 ASSN STD 5TH MATERIAL RESPONSE AND AISI 1074 ASSN STD 6TH MATERIAL RESPONSE AND AISI 1078 ASSN STD 7TH MATERIAL RESPONSE AND AISI 1080 ASSN STD 8TH MATERIAL RESPONSE AND AISI 1084 ASSN STD 9TH MATERIAL RESPONSE AND AISI 1085 ASSN STD 10TH MATERIAL RESPONSE AND AISI 1090 ASSN STD 11TH MATERIAL RESPONSE AND AISI 1095 ASSN STD 12TH MATERIAL RESPONSE. 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.