The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-043-6747, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Imi Cash Valve Inc. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-043-6747 |
| Primary Part Number | B1-2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Imi Cash Valve Inc |
| Status | ACTIVE |
| Flow Control Device | DISK, BOTTOM GUIDED |
| Valve Stem Design | DOUBLE SEAT |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | STRAIGHT THRU |
| Regulation Type | 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC |
| First End Style Designator | PLAIN |
| Temp Rating | 400.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 10.0 TO 45.0 CAMERA MOUNT |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | BRONZE SEAT |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY STEM |
| Media for Which Designed | STEAM |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 1/2-14 NPT FIRST END |
| Filter | NOT 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 |
|---|---|
| B1-2 PRIMARY | Imi Cash Valve Inc (USA) |
NSN 4820-01-043-6747 is a Valve,regulating,fluid Pressure, manufactured by Imi Cash Valve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-043-6747 has 1 manufacturer part number on file: B1-2 (Imi Cash Valve Inc).
Key specifications for B1-2: Flow Control Device: DISK, BOTTOM GUIDED; Valve Stem Design: DOUBLE SEAT; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL. 21 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.