The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-893-4657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 25 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 | 4820-00-893-4657 |
| Primary Part Number | U4785T5B |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | STEM AND INTEGRAL DISK |
| Two-Way Valve Action | DIRECT ACTING |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Flange Thickness | 0.531 INCHES NOMINAL IN |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| First End Flange Width | 2.562 INCHES NOMINAL IN |
| Third Connection Face to Centerline Distance | 2.251 INCHES NOMINAL IN |
| Temp Rating | 140.0 FAHRENHEIT NOMINAL DEGF |
| First Connection Face to Centerline Distance | 2.251 INCHES NOMINAL IN |
| First End Bolt Hole Diameter | 0.344 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 |
| Mounting Facility | FLANGE |
| Second Connection Face to Centerline Distance | 2.251 INCHES NOMINAL IN |
| Fourth Connection Face to Centerline Distance | 2.251 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 |
| Fourth End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Flange Length | 2.562 INCHES NOMINAL IN |
| Center to Center Distance | 4.125 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 |
|---|---|
| U4785T5B PRIMARY | Triumph Thermal Systems, Llc (USA) |
NSN 4820-00-893-4657 is a Valve,regulating,temperature, manufactured by Triumph Thermal Systems, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-893-4657 has 1 manufacturer part number on file: U4785T5B (Triumph Thermal Systems, Llc).
Key specifications for U4785T5B: First End Bolt Hole Quantity: 4; Flow Control Device: STEM AND INTEGRAL DISK; Two-Way Valve Action: DIRECT ACTING; Second End Relationship with First End: IDENTICAL. 25 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.