The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-975-2988, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-975-2988 |
| Primary Part Number | 381-1084P1 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Flow Control Device | STEM AND INTEGRAL DISK |
| Two-Way Valve Action | DIRECT ACTING |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | PLAIN |
| Bulb Length | 20.000 INCHES NOMINAL IN |
| Bulb Diameter | 1.000 INCHES NOMINAL IN |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Capillary Tube Length | 96.000 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Temp Adjustability | ADJUSTABLE |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Material | COPPER BULB |
| Material | ASBESTOS AND RUBBER SYNTHETIC PACKING |
| Thread Size and Series/type Designator | 1-111/2 NPT FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 590184A | Pannell/associates Inc (USA) |
| 381-1084P1 PRIMARY | Raytheon Company Div Corp (USA) |
| C08DN02 | Pannell/associates Inc (USA) |
| 595-DS100H | Pannell/associates Inc (USA) |
| Reference | Meaning |
|---|---|
| N0.11ATYPE266S | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-975-2988 is a Valve,regulating,temperature, manufactured by Raytheon Company Div Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-975-2988 has 4 manufacturer part numbers on file: 590184A (Pannell/associates Inc), 381-1084P1 (Raytheon Company Div Corp), C08DN02 (Pannell/associates Inc), 595-DS100H (Pannell/associates Inc).
Key specifications for 381-1084P1: Flow Control Device: STEM AND INTEGRAL DISK; Two-Way Valve Action: DIRECT ACTING; 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.