The Ring,retaining, cataloged under National Stock Number 5325-00-472-9075, 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 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-472-9075 |
| Primary Part Number | 915-21A |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Columbus Jack Corporation Div Columbus Jack |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Diameter | 0.020 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.310 INCHES NOMINAL IN |
| Inside Diameter | 0.264 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOKED |
| Material | STEEL UNS K08500 |
| 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 |
|---|---|
| 915-21A PRIMARY | Columbus Jack Corporation Div Columbus Jack (USA) |
| Reference | Meaning |
|---|---|
| 915-21A | 5/9 Secondary reference Age Logistics Corporation |
NSN 5325-00-472-9075 is a Ring,retaining, manufactured by Columbus Jack Corporation Div Columbus Jack, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-472-9075 has 1 manufacturer part number on file: 915-21A (Columbus Jack Corporation Div Columbus Jack).
Key specifications for 915-21A: Usage Design: INTERNAL; Material Diameter: 0.020 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 9 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.