The Ring,retaining, cataloged under National Stock Number 5325-01-406-2848, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Aviation Spares and Repairs Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-406-2848 |
| Primary Part Number | UR356S |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Aviation Spares and Repairs Ltd |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 3.692 INCHES NOMINAL IN |
| Major Thickness | 0.041 INCHES NOMINAL IN |
| Inside Diameter | 3.356 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| 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 |
|---|---|
| UR356S | Aviation Spares and Repairs Ltd (GBR) |
| Reference | Meaning |
|---|---|
| UR356S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-406-2848 is a Ring,retaining, manufactured by Aviation Spares and Repairs Ltd, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-406-2848 has 1 manufacturer part number on file: UR356S (Aviation Spares and Repairs Ltd).
Key specifications for UR356S: Usage Design: INTERNAL; Material Document and Classification: AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 3.692 INCHES NOMINAL IN. 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.