The Ring,retaining, cataloged under National Stock Number 5325-01-179-0844, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | The Boeing Company (CAGE 8V613); Smalley Steel Ring Co. (CAGE 51814); Echelon Supply and Service, Inc. (CAGE 61125); Lynn Electronics Llc (CAGE 19151); The Boeing Company Div Services (CAGE 48T42) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-179-0844 |
| Primary Part Number | HS3031UR725 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| HS3031UR725 PRIMARY | The Boeing Company (USA) |
| HS3031UR725 | Smalley Steel Ring Co. (USA) |
| HS3031UR725 | Echelon Supply and Service, Inc. (USA) |
| HS3031UR725 | Lynn Electronics Llc (USA) |
| HS3031UR725 | The Boeing Company Div Services (USA) |
| Reference | Meaning |
|---|---|
| UR725 | 3/2 Design control — primary reference U.S. Government activity |
| HS3031UR725 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5325-01-179-0844 is a Ring,retaining, manufactured by The Boeing Company, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-179-0844 has 5 manufacturer part numbers on file: HS3031UR725 (The Boeing Company), HS3031UR725 (Smalley Steel Ring Co.), HS3031UR725 (Echelon Supply and Service, Inc.), HS3031UR725 (Lynn Electronics Llc), HS3031UR725 (The Boeing Company Div Services).
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.