The O-Ring, cataloged under National Stock Number 5331-01-320-0477, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (CAGE 04627); Rheinmetall Landsysteme Gmbh (CAGE D9448) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-320-0477 |
| Primary Part Number | 179442 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| 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 |
|---|---|
| 1337051 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| AS568A-250 | Rheinmetall Landsysteme Gmbh (DEU) |
| 179442 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 179442 P/N 1337051 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| AS568A-250 | 5/9 Secondary reference U.S. Government activity |
| 1337051 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| AS568A-250 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 5331-01-320-0477 is a O-Ring, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-320-0477 has 3 manufacturer part numbers on file: 1337051 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), AS568A-250 (Rheinmetall Landsysteme Gmbh), 179442 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
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.