The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-087-8737, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-087-8737 |
| Primary Part Number | 176539 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| Status | ACTIVE |
| Component Quantity | 7 |
| Supply Items and Quantities | SCREW 2;WIPER 1;SEAL RETAINER 1;LOCK WASHERS 2;PLATE RETAINER 1 |
| 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 |
|---|---|
| 176539 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 260995 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
| 176539 | 3/9 Design control — primary reference Hyster-Yale Group, Inc. |
NSN 4820-01-087-8737 is a Parts Kit,safety Relief Valve, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-087-8737 has 1 manufacturer part number on file: 176539 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
Key specifications for 176539: Component Quantity: 7; Supply Items and Quantities: SCREW 2;WIPER 1;SEAL RETAINER 1;LOCK WASHERS 2;PLATE RETAINER 1. 2 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.