The Ring,retaining, cataloged under National Stock Number 5325-00-902-4101, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rotair Aerospace Corp. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-902-4101 |
| Primary Part Number | 2-160-404-01 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| Material Hardness Rating | 75.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 85.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Strength Rating | ERR-060 |
| Material Diameter | 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5688,COMPOSITION SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.347 INCHES MINIMUM AND 0.351 INCHES MAXIMUM IN |
| Inside Diameter | 0.293 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| 2-160-404-01 | Rotair Aerospace Corp (USA) |
| Reference | Meaning |
|---|---|
| 2-160-404-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-902-4101 is a Ring,retaining, manufactured by Rotair Aerospace Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-902-4101 has 1 manufacturer part number on file: 2-160-404-01 (Rotair Aerospace Corp).
Key specifications for 2-160-404-01: Material Hardness Rating: 75.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 85.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Strength Rating: ERR-060. 13 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.