The Ring,retaining, cataloged under National Stock Number 5325-00-263-5887, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-263-5887 |
| Primary Part Number | 8169666 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Material Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Diameter | 0.057 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A576 COMP FS1060 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.576 INCHES NOMINAL IN |
| Inside Diameter | 0.453 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL COMP 1060 |
| 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 |
|---|---|
| 8169666 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 3237435 | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3237435 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 81127S41-25374ALT2PC19 | 5/2 Secondary reference U.S. Government activity |
| 81158S4105-1086734 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-00-263-5887 is a Ring,retaining, manufactured by Us Army Aviation and Missile Command, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-263-5887 has 2 manufacturer part numbers on file: 8169666 (Us Army Aviation and Missile Command), 3237435 (Hatch & Kirk, Inc.).
Key specifications for 8169666: Material Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Diameter: 0.057 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN. 11 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.