The Valve Arm Assembly, cataloged under National Stock Number 4820-01-583-4863, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Westerbeke Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-583-4863 |
| Primary Part Number | 53287 |
| Item Name | Valve Arm Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Westerbeke Corporation |
| 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 |
|---|---|
| 1C020-1346-0 | Kubota Engine America Corporation (USA) |
| 53287 PRIMARY | Westerbeke Corporation (USA) |
NSN 4820-01-583-4863 is a Valve Arm Assembly, manufactured by Westerbeke Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-583-4863 has 2 manufacturer part numbers on file: 1C020-1346-0 (Kubota Engine America Corporation), 53287 (Westerbeke Corporation).
Key specifications for 53287: Part Name Assigned by Controlling Agency: ASSY,VALVE ARM; End Item Identification: VALVE AND ROCKER ARM. 0 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.