The Ring,retaining, cataloged under National Stock Number 5325-01-028-7933, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Parker-Hannifin Corporation Dba Pneutronics (CAGE 3H889) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-028-7933 |
| Primary Part Number | 645198S337 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| 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 |
|---|---|
| 645198S337 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 645198S337 | 3/9 Design control — primary reference U.S. Government activity |
| RS-337 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 645198S337 | 5/9 Secondary reference U.S. Government activity |
| RS337 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5325-01-028-7933 is a Ring,retaining, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-028-7933 has 1 manufacturer part number on file: 645198S337 (Parker-Hannifin Corporation Dba Pneutronics).
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.