The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-442-8638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Victor Equipment Co. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-442-8638 |
| Primary Part Number | 0781-1475 |
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Victor Equipment Co |
| Status | ACTIVE |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 300.0 TO 4500.0 CAMERA MOUNT |
| Mounting Facility | PANEL |
| Material | COPPER ALLOY BODY |
| Material | RUBBER SEAT |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Filter | INCLUDED |
| 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 |
|---|---|
| 0781-1475 PRIMARY | Victor Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| SR4K-250-VIC-0797-0233 | 5/9 Secondary reference Victor Equipment Co |
NSN 4820-01-442-8638 is a Valve,regulating,system Pressure, manufactured by Victor Equipment Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-442-8638 has 1 manufacturer part number on file: 0781-1475 (Victor Equipment Co).
1 possible match (shared part number, not a government interchangeability claim): 1660-01-708-8797. Verify interchangeability with system specifications before substitution.
Key specifications for 0781-1475: End Connection Quantity: 2; Outlet Pressure Range: 300.0 TO 4500.0 CAMERA MOUNT; Mounting Facility: PANEL; Special Features: INCL 2 EA GAGE SZ 2.500 IN., OUTLET CONNECTION SZ 0.250 IN. SWAGED LOCK TYPE IN. 8 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.