The Thermostatic Control,valve, cataloged under National Stock Number 4820-01-122-4373, 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 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-122-4373 |
| Primary Part Number | 50156-02 |
| Item Name | Thermostatic Control,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | COPPER AND BRASS; 2.500 IN. TO 5.000 IN. VALVE USAGE; 15 FEET LONG CAPILLARY TUBE; 1.125 IN. DIA SEENSING BULB 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 |
|---|---|
| 50156-02 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 40146 PC 1 50T90 DEG F 15FT TB | 5/9 Secondary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| 40146 PART 50156-02 | 5/9 Secondary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
NSN 4820-01-122-4373 is a Thermostatic Control,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-122-4373 has 1 manufacturer part number on file: 50156-02 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for 50156-02: General Characteristics Item Description: COPPER AND BRASS; 2.500 IN. TO 5.000 IN. VALVE USAGE; 15 FEET LONG CAPILLARY TUBE; 1.125 IN. DIA SEENSING BULB IN. 1 specification is 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.