The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-203-8945, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-203-8945 |
| Primary Part Number | 50158-03 |
| 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 |
| Flow Control Device | PISTON, FREE TYPE |
| First End Style Designator | PLAIN |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Flange Outside Diameter | 6.125 INCHES NOMINAL IN |
| End Connection Quantity | 3 |
| First Connection Face to Centerline Distance | 4.875 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Capillary Tube Length | 120.000 INCHES NOMINAL IN |
| Body Style | TEE |
| Material | COPPER ALLOY SEAT |
| Face to Face Distance | 8.750 INCHES NOMINAL IN |
| First End Connection Type | PLAIN FACE FLANGE |
| Temp Adjustability | ADJUSTABLE |
| Material | COPPER ALLOY STEM |
| First End Flange Shape Style | ROUND |
| Bulb Length | 36.000 INCHES NOMINAL IN |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | COPPER BULB |
| Bulb Diameter | 1.125 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| First End Flange Thickness | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 50158-03 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40176-1PT50158-3 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40176 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 4820-01-203-8945 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 4820-01-203-8945 has 3 cross-referenced part numbers: 50158-03 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40176-1PT50158-3 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40176 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
There are 12 known substitutes for 4820-01-203-8945: 2810-00-118-5251, 9540-00-261-5145, 4730-00-289-3258 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 50158-03: Flow Control Device: PISTON, FREE TYPE; First End Style Designator: PLAIN; Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END; First End Flange Outside Diameter: 6.125 INCHES NOMINAL IN. 22 total characteristics are documented in the Federal Logistics Information System.