The Ring,retaining, cataloged under National Stock Number 5325-01-078-5584, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-078-5584 |
| Primary Part Number | 5100-550 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rotor Clip Company, Inc. |
| Status | ACTIVE |
| Material Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | FED STD 66 AISI 1060, 1061, 1064, 1065, 1066, 1069, 1070, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Inside Diameter | 5.122 INCHES MINIMUM AND 5.182 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 |
|---|---|
| 5100-550 PRIMARY | Rotor Clip Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5100-550 | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5325-01-078-5584 is a Ring,retaining, manufactured by Rotor Clip Company, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-078-5584 has 1 manufacturer part number on file: 5100-550 (Rotor Clip Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-243-8295. Verify interchangeability with system specifications before substitution.
Key specifications for 5100-550: Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: FED STD 66 AISI 1060, 1061, 1064, 1065, 1066, 1069, 1070, 1074, 1075, 1078, 1080, 1084, 1086, OR 1090 FED STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.