The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-433-3024, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-433-3024 |
| Primary Part Number | 40065-404 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET W/BRAZING RING |
| Bulb Length | 12.000 INCHES NOMINAL IN |
| Bulb Diameter | 1.125 INCHES NOMINAL IN |
| Temp Rating | 60.0 FAHRENHEIT MINIMUM AND 90.0 FAHRENHEIT MAXIMUM 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 | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| End Connection Quantity | 2 |
| Capillary Tube Length | 240.000 INCHES NOMINAL IN |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Temp Adjustability | ADJUSTABLE |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| First End Nominal Pipe Size Accommodated | 2.000 INCHES IN |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY BULB |
| Material | COPPER ALLOY 922 BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | PLASTIC TETRAFLUOROETHYLENE PACKING |
| 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 |
|---|---|
| 40065-404 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 40065-4 | D/9 Drawing number reference only Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
NSN 4820-01-433-3024 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 4820-01-433-3024 has 1 manufacturer part number on file: 40065-404 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
3 possible matches (shared part number, not a government interchangeability claim): 6515-01-510-1325, 5140-01-613-7845, 4820-01-687-7651. Verify interchangeability with system specifications before substitution.
Key specifications for 40065-404: Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: SOCKET W/BRAZING RING; Bulb Length: 12.000 INCHES NOMINAL IN. 20 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.