The Ring,retaining, cataloged under National Stock Number 5325-01-056-3310, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rotor Clip Company, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-056-3310 |
| Primary Part Number | PO-62STPA |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rotor Clip Company, Inc. |
| Status | ACTIVE |
| Material Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | FED STD 66 AISI 1060, 1061, 1064, 1065, 1066, 1069, 1070, 1072, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.950 INCHES NOMINAL IN |
| Major Thickness | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| PO-62STPA PRIMARY | Rotor Clip Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5304-62 | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 5304-62 | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5325-01-056-3310 is a Ring,retaining, manufactured by Rotor Clip Company, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-056-3310 has 1 manufacturer part number on file: PO-62STPA (Rotor Clip Company, Inc.).
Key specifications for PO-62STPA: Material Hardness Rating: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: FED STD 66 AISI 1060, 1061, 1064, 1065, 1066, 1069, 1070, 1072, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 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.