The Ring,retaining, cataloged under National Stock Number 5325-01-280-7145, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Smalley Steel Ring Co.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Smalley Steel Ring Co. (CAGE 51814) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-280-7145 |
| Primary Part Number | WH-437-S02 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| 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 |
|---|---|
| WH-437-S02 | Smalley Steel Ring Co. (USA) |
| Reference | Meaning |
|---|---|
| 3531 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| RR-437-S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-280-7145 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-280-7145 has 1 manufacturer part number on file: WH-437-S02 (Smalley Steel Ring Co.).
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.