The Regulator,thermostatic Temperatu, cataloged under National Stock Number 4820-01-303-3258, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Richards Industries Valve Group Jordan Valve Div. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-303-3258 |
| Primary Part Number | 83949 |
| Item Name | Regulator,thermostatic Temperatu |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Richards Industries Valve Group Jordan Valve Div |
| Status | ACTIVE |
| Bulb Length | 12.000 INCHES NOMINAL IN |
| Bulb Diameter | 1.000 INCHES NOMINAL IN |
| Accessory Components and Quantity | SWA ACTUATOR |
| Capillary Tube Length | 480.000 INCHES NOMINAL IN |
| Operating Temp Rating | 120.0 FAHRENHEIT NOMINAL AND 185.0 FAHRENHEIT NOMINAL DEGF |
| Thermostat Type | BULB |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-303-3258 is a Regulator,thermostatic Temperatu, manufactured by Richards Industries Valve Group Jordan Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-303-3258 has 2 manufacturer part numbers on file: 83949 (Richards Industries Valve Group Jordan Valve Div), CA83949 (Richards Industries Valve Group Jordan Valve Div).
Key specifications for 83949: Bulb Length: 12.000 INCHES NOMINAL IN; Bulb Diameter: 1.000 INCHES NOMINAL IN; Accessory Components and Quantity: SWA ACTUATOR; Capillary Tube Length: 480.000 INCHES NOMINAL IN. 6 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.