The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-331-6646, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-331-6646 |
| Primary Part Number | 8637546 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Media for Which Designed | OIL |
| 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 |
|---|---|
| 8637546 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 8637546 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 4820-01-331-6646 is a Valve,regulating,fluid Pressure, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-331-6646 has 1 manufacturer part number on file: 8637546 (General Motors Llc Dba General Motors Llc).
Key specifications for 8637546: Media for Which Designed: OIL. 1 specification is 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.