The Valve Assembly,pressure and Reli, cataloged under National Stock Number 4820-00-403-1635, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 1 verified specification, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-403-1635 |
| Primary Part Number | C4500 |
| Item Name | Valve Assembly,pressure and Reli |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,0.500 IN. PIPE ACCOMMODATED,3 CONNECTIONS,1/2 IN.-14 NPT,TWO VALVES COUPLED WITH PIPE NIPPLE,REGULATING VALVE SET AT 12 TO 15 PSI,RELIEF @VALVE SET AT 30 @PSI IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| C4500 PRIMARY | Watts Regulator Company (USA) |
NSN 4820-00-403-1635 is a Valve Assembly,pressure and Reli, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-403-1635 has 1 cross-referenced part number: C4500 (Watts Regulator Company).
There are 3 known substitutes for 4820-00-403-1635: 6220-00-025-3675, 4820-00-403-0043, 5950-01-104-7459. Verify interchangeability with system specifications before substitution.
Key specifications for C4500: General Characteristics Item Description: STEEL,0.500 IN. PIPE ACCOMMODATED,3 CONNECTIONS,1/2 IN.-14 NPT,TWO VALVES COUPLED WITH PIPE NIPPLE,REGULATING VALVE SET AT 12 TO 15 PSI,RELIEF @VALVE SET AT 30 @PSI IN. 1 total characteristics are documented in the Federal Logistics Information System.