The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-499-2932, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-499-2932 |
| Primary Part Number | 50148-19 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Flow Control Device | PLUNGER WITH 2 INTEGRAL DISKS |
| First End Width Across Flats | 6.000 INCHES NOMINAL IN |
| Bulb Diameter | 1.875 INCHES NOMINAL IN |
| Temp Rating | 60.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF |
| Valve Size | 0.500 INCHES IN |
| Capillary Tube Length | 12.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 40735-4 PC NO 1 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 50148-19 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| MIL-DTL-19772 | 4/1 Identification reference U.S. Government activity |
| MIL-V-19772 | 5/9 Secondary reference U.S. Government activity |
| 40735-4 | D/9 Drawing number reference only Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
NSN 4820-01-499-2932 is a Valve,regulating,temperature, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-499-2932 has 2 manufacturer part numbers on file: 40735-4 PC NO 1 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 50148-19 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for 50148-19: Flow Control Device: PLUNGER WITH 2 INTEGRAL DISKS; First End Width Across Flats: 6.000 INCHES NOMINAL IN; Bulb Diameter: 1.875 INCHES NOMINAL IN; Temp Rating: 60.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF. 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.