The Ring,retaining, cataloged under National Stock Number 5325-00-780-6565, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Airlines. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-780-6565 |
| Primary Part Number | 6864041 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rolls-Royce Airlines |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | AMS 5571,COMPOSITION 30347 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.588 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN |
| Major Thickness | 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Inside Diameter | 0.534 INCHES MINIMUM AND 0.553 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL COMP 347 |
| 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 |
|---|---|
| 6864041 | Rolls-Royce Airlines (GBR) |
| Reference | Meaning |
|---|---|
| 6864041 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6864041 | 5/9 Secondary reference Ausco Inc |
| 6864041 | 3/9 Design control — primary reference Rolls-Royce Corporation |
NSN 5325-00-780-6565 is a Ring,retaining, manufactured by Rolls-Royce Airlines, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-780-6565 has 1 manufacturer part number on file: 6864041 (Rolls-Royce Airlines).
Key specifications for 6864041: Usage Design: INTERNAL; End Style: 90 DEGREE PARALLEL; Material Document and Classification: AMS 5571,COMPOSITION 30347 ASSN 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.