The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-232-2447, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fairchild Industrial Products Company. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-232-2447 |
| Primary Part Number | 81452PT |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fairchild Industrial Products Company |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | PLAIN |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 200.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 0.5 TO 100.0 CAMERA MOUNT |
| Manual Control Method | KNOB |
| Valve Loading Method | WEIGHT |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Material | ALUMINUM ALLOY BODY |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 1/4-18 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 |
|---|---|
| 81452PT PRIMARY | Fairchild Industrial Products Company (USA) |
| 53003-G503 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 81252TP | 5/9 Secondary reference Fairchild Industrial Products Company |
| 5300B-G503 | C/1 Advisory reference — outside the item-of-supply concept Howell Laboratories Inc Dba Howell Laboratories Inc |
| 81352TP | 5/9 Secondary reference Fairchild Industrial Products Company |
NSN 4820-01-232-2447 is a Valve,regulating,fluid Pressure, manufactured by Fairchild Industrial Products Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-232-2447 has 2 manufacturer part numbers on file: 81452PT (Fairchild Industrial Products Company), 53003-G503 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 81452PT: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 19 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.