The Ring,retaining, cataloged under National Stock Number 5325-00-908-5639, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-908-5639 |
| Primary Part Number | 58903 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.0330 INCHES MINIMUM AND 0.0380 INCHES MAXIMUM IN |
| Inside Diameter | 0.5690 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-00-908-5639 is a Ring,retaining, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-908-5639 has 3 manufacturer part numbers on file: 58903 (Hyster-Yale Group, Inc.), 58903 (Hyster (europe) Ltd), 58903 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
2 possible matches (shared part number, not a government interchangeability claim): 8340-01-448-7004, 5331-01-474-7693. Verify interchangeability with system specifications before substitution.
Key specifications for 58903: Usage Design: EXTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.0330 INCHES MINIMUM AND 0.0380 INCHES MAXIMUM IN; Inside Diameter: 0.5690 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN. 7 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.