The Regulator,thermostatic Temperatu, cataloged under National Stock Number 4820-01-540-8577, 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 3 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 | 4820-01-540-8577 |
| Primary Part Number | 50149-19 |
| Item Name | Regulator,thermostatic Temperatu |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Mounting Method | FLANGE |
| Valve Size for Which Designed | 2.500 INCHES IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 40066-2 PC. 36 P/N 50149-19 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 50149-19 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-540-8577 is a Regulator,thermostatic Temperatu, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-540-8577 has 2 manufacturer part numbers on file: 40066-2 PC. 36 P/N 50149-19 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 50149-19 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for 50149-19: Mounting Method: FLANGE; Valve Size for Which Designed: 2.500 INCHES IN; Thermostat Type: BULB; Special Features: OPERATING TEMPERATURE RANGE 70-100 DEG F; SET TEMPERATURE 85 DEG F DEGF. 3 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.