The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-274-8114, 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 16 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-274-8114 |
| Primary Part Number | 40145-909 SERIES 150 |
| 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 | DOUBLE SEATED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET |
| Temp Rating | 120.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| End Connection Quantity | 2 |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Nominal Pipe Size Accommodated | 2.000 INCHES IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PACKING |
| Material | COPPER ALLOY 922 BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | COPPER ALLOY 922 SEAT |
| 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 |
|---|---|
| 40145-909 SERIES 150 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 40145 PT501154-05 | 5/9 Secondary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| 40145 PT50154-05 | 5/9 Secondary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
NSN 4820-01-274-8114 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 4820-01-274-8114 has 1 manufacturer part number on file: 40145-909 SERIES 150 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
Key specifications for 40145-909 SERIES 150: Flow Control Device: DOUBLE SEATED; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: SOCKET. 16 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.