The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-281-4403, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-281-4403 |
| Primary Part Number | 40566-801 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Second End Relationship with First End | IDENTICAL |
| Material | COPPER ALLOY BODY |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| End Connection Quantity | 3 |
| Bulb Length | 12.000 INCHES NOMINAL IN |
| Capillary Tube Length | 300.000 INCHES NOMINAL IN |
| First End Style Designator | STREAMLINED WITH ONE BRAZING RING |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| Bulb Diameter | 1.125 INCHES NOMINAL IN |
| Two-Way Valve Action | REVERSE ACTING |
| Flow Control Device | DISK |
| Material | COPPER BULB |
| Body Style | STRAIGHT THRU |
| First End Nominal Pipe Size Accommodated | 1.000 INCHES IN |
| Material | NICKEL ALLOY SEAT |
| Temp Adjustability | ADJUSTABLE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 40566-801 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-281-4403 is a Valve,regulating,temperature, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-281-4403 has 1 cross-referenced part number: 40566-801 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There is 1 known substitute for 4820-01-281-4403: 4720-01-474-0260. Verify interchangeability with system specifications before substitution.
Key specifications for 40566-801: First End Connection Type: UNTHREADED INTERNAL PIPE; Second End Relationship with First End: IDENTICAL; Material: COPPER ALLOY BODY; Thermostatic Element: LIQUID IMMERSION TYPE. 17 total characteristics are documented in the Federal Logistics Information System.