The Ring,retaining, cataloged under National Stock Number 5325-00-616-4257, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-616-4257 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | FED STD 66,CLASS FS1066 TO FS1090 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 3.295 INCHES MINIMUM AND 3.365 INCHES MAXIMUM IN |
| Major Thickness | 0.093 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL |
| Surface Treatment | PHOSPHATE |
| 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 |
|---|---|
| N5000-300PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| N5000-300-S-PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 42R2055-255 | 4/1 Identification reference U.S. Government activity |
| N5000-300-S-PP | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 3000-X300-ST-PA | 5/9 Secondary reference U.S. Government activity |
| MS16625-3300 | 4/1 Identification reference U.S. Government activity |
| N5000-X300-S-PP | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| N5000-300PP | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| N5000-X300-S-PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5325-00-616-4257 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-270-4422. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-616-4257: Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: FED STD 66,CLASS FS1066 TO FS1090 FED STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 10 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.