The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-043-4553, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell Inc Commercial Div. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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 | 4820-01-043-4553 |
| Primary Part Number | PP901A1004-2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell Inc Commercial Div |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU W/OFFSET |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 0.0 TO 50.0 CAMERA MOUNT |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| Mounting Facility | STUD |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | STEEL BODY |
| Media for Which Designed | ACETYLENE |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 1/8-27 NPTF 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 |
|---|---|
| P20-863 | Robertshaw Controls Co Grayson Controls Div (USA) |
| AL483 | Barber-Colman Co Environmental Controls Div (USA) |
| PP901A1004-2 PRIMARY | Honeywell Inc Commercial Div (USA) |
NSN 4820-01-043-4553 is a Valve,regulating,fluid Pressure, manufactured by Honeywell Inc Commercial Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-043-4553 has 3 manufacturer part numbers on file: P20-863 (Robertshaw Controls Co Grayson Controls Div), AL483 (Barber-Colman Co Environmental Controls Div), PP901A1004-2 (Honeywell Inc Commercial Div).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-045-4354. Verify interchangeability with system specifications before substitution.
Key specifications for PP901A1004-2: First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU W/OFFSET; Regulation Type: MANUAL SINGLE STAGE. 17 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.