The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-678-0046, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aqua Environment Co, Inc. Government technical data includes 4 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 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 | 4820-01-678-0046 |
| Primary Part Number | 1247-2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aqua Environment Co, Inc |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| Outlet Pressure Range | 100.0 TO 300.0 CAMERA MOUNT |
| Material | ALUMINUM AND STEEL BODY |
| Maximum Inlet Pressure Rating | ERR-060 |
| 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 |
|---|---|
| 1247-2 PRIMARY | Aqua Environment Co, Inc (USA) |
NSN 4820-01-678-0046 is a Valve,regulating,fluid Pressure, manufactured by Aqua Environment Co, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-678-0046 has 1 manufacturer part number on file: 1247-2 (Aqua Environment Co, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-728-0987. Verify interchangeability with system specifications before substitution.
Key specifications for 1247-2: Flow Control Device: PISTON, SPRING LOADED; Outlet Pressure Range: 100.0 TO 300.0 CAMERA MOUNT; Part Name Assigned by Controlling Agency: INLINE REDUCING REGULATOR 1/4 INCH NPT IN; Material: ALUMINUM AND STEEL BODY. 4 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.