The Ring,retaining, cataloged under National Stock Number 5325-00-079-9628, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Columbus Jack Corporation Div Columbus Jack. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Columbus Jack Corporation Div Columbus Jack (CAGE 00994); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445) |
| Parameter | Value |
|---|---|
| NSN | 5325-00-079-9628 |
| Primary Part Number | 487058 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Columbus Jack Corporation Div Columbus Jack |
| Status | ACTIVE |
| Material Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | D SHAP BELOW INSIDE PERIPHERY |
| Material Document and Classification | AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5132 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 6.240 INCHES NOMINAL IN |
| Major Thickness | 0.072 INCHES NOMINAL IN |
| Inside Diameter | 5.780 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | NICKEL AND CADMIUM |
| Material | STEEL COMP 1095 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 487058 | Columbus Jack Corporation Div Columbus Jack (USA) |
| 487058 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 487058 | 3/2 Design control — primary reference U.S. Government activity |
| 487058 | 5/2 Secondary reference U.S. Government activity |
| 487058 | 5/9 Secondary reference Age Logistics Corporation |
NSN 5325-00-079-9628 is a Ring,retaining, manufactured by Columbus Jack Corporation Div Columbus Jack, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-079-9628 has 2 manufacturer part numbers on file: 487058 (Columbus Jack Corporation Div Columbus Jack), 487058 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-429-1670. Verify interchangeability with system specifications before substitution.
Key specifications for 487058: Material Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: D SHAP BELOW INSIDE PERIPHERY; Material Document and Classification: AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5132 ASSN STD SINGLE 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.