The Ring,retaining, cataloged under National Stock Number 5325-00-601-8277, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5325-00-601-8277 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | CANCELLED |
| Material Hardness Rating | 73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM |
| Usage Design | INTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | FED STD NO. 66,AISI 1070 THRU 1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 2.347 INCHES MINIMUM AND 2.372 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 2 TYPE AND 1 CLASS AND 2.250 INCH SIZE IN |
| Major Thickness | 0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 2.071 INCHES MINIMUM AND 2.096 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
| M2742630155B | 2/2 Government specification standardization U.S. Government activity |
| RR225CD | 5/1 Secondary reference U.S. Government activity |
| WH-225-CD | 5/1 Secondary reference Smalley Steel Ring Co. |
| RR225 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| RR225 | C/1 Advisory reference — outside the item-of-supply concept Federal Mogul |
NSN 5325-00-601-8277 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: cancelled.
Key specifications for 5325-00-601-8277: Material Hardness Rating: 73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM; Usage Design: INTERNAL; Strength Rating: ERR-060; Material Document and Classification: FED STD NO. 66,AISI 1070 THRU 1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE. 13 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.
NSN 5325-00-601-8277 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.