The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-684-3907, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-684-3907 |
| Primary Part Number | 1708543-1 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Furnished Items | INTERNAL BYPASS VALVE |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY SEAT |
| First End Connection Type | THREADED INTERNAL PIPE |
| Bulb Length | 10.312 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Thread Size and Series/type Designator | 1/2-14 NPT FIRST END |
| First End Style Designator | OPTIONAL END |
| Material | COPPER BULB |
| Bulb Diameter | 0.750 INCHES NOMINAL IN |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Flow Control Device | DISK, BOTTOM GUIDED |
| End Connection Quantity | 2 |
| Two-Way Valve Action | DIRECT ACTING |
| Body Style | STRAIGHT THRU |
| Thermostatic Element | LIQUID IMMERSION TYPE |
| Temp Adjustability | ADJUSTABLE |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-684-3907 is a Valve,regulating,temperature, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-684-3907 has 2 cross-referenced part numbers: T44 (Spirax Sarco Inc Dba Spirax Sarco), 1708543-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 7 known substitutes for 4820-00-684-3907: 2940-00-377-2890, 5120-00-473-7410, 5940-00-537-4560 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1708543-1: Furnished Items: INTERNAL BYPASS VALVE; Material: COPPER ALLOY BODY; Material: COPPER ALLOY SEAT; First End Connection Type: THREADED INTERNAL PIPE. 20 total characteristics are documented in the Federal Logistics Information System.