The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-574-0581, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-574-0581 |
| Primary Part Number | 513-2284 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| End Connection Quantity | 1 |
| First End Connection Type | THREADED CARTRIDGE |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE |
| 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 |
|---|---|
| 513-2284 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 215-8115 | 5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense |
NSN 4820-01-574-0581 is a Valve,regulating,fluid Pressure, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-574-0581 has 1 manufacturer part number on file: 513-2284 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 513-2284: End Connection Quantity: 1; First End Connection Type: THREADED CARTRIDGE; Part Name Assigned by Controlling Agency: VALVE GP-FLOW CONTROL (SIGNAL DRAIN); INAVY VALVE, REGULATING; End Item Identification: VALVE GP-MAIN CONTROL; 924G WHEELED LOADER G. 3 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.