The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-803-3944, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Standard-Thomson Corporation. Government technical data includes 29 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-803-3944 |
| Primary Part Number | 46800-102 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Standard-Thomson Corporation |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | CONE, TOP GUIDED |
| Two-Way Valve Action | DIRECT ACTING |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| Bulb Length | 2.937 INCHES NOMINAL IN |
| First End Flange Width | 2.562 INCHES NOMINAL IN |
| Third Connection Face to Centerline Distance | 1.750 INCHES NOMINAL IN |
| Bulb Diameter | 1.250 INCHES NOMINAL IN |
| Temp Rating | 102.0 FAHRENHEIT NOMINAL DEGF |
| First Connection Face to Centerline Distance | 1.750 INCHES NOMINAL IN |
| First End Bolt Hole Diameter | 0.188 INCHES NOMINAL IN |
| First End Center to Center Distance Between Holes Along Width | 2.000 INCHES NOMINAL IN |
| First End Center to Center Distance Between Holes Along Length | 2.000 INCHES NOMINAL IN |
| End Connection Quantity | 4 |
| Second Connection Face to Centerline Distance | 1.750 INCHES NOMINAL IN |
| Fourth Connection Face to Centerline Distance | 1.750 INCHES NOMINAL IN |
| First End Connection Type | PLAIN FACE FLANGE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Flange Shape Style | RECTANGULAR (INCLUDES SQUARE) W/ BOLT HOLES |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| Fourth End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY BULB |
| Material | ALUMINUM ALLOY SEAT |
| Material | ALUMINUM ALLOY BODY |
| First End Flange Length | 2.562 INCHES NOMINAL 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 |
|---|---|
| 46800-102 PRIMARY | Standard-Thomson Corporation (USA) |
NSN 4820-00-803-3944 is a Valve,regulating,temperature, manufactured by Standard-Thomson Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-803-3944 has 1 manufacturer part number on file: 46800-102 (Standard-Thomson Corporation).
Key specifications for 46800-102: First End Bolt Hole Quantity: 4; Flow Control Device: CONE, TOP GUIDED; Two-Way Valve Action: DIRECT ACTING; Second End Relationship with First End: IDENTICAL. 29 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.