The Valve,safety Relief, cataloged under National Stock Number 4820-00-985-0630, 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 18 verified specifications, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-985-0630 |
| Primary Part Number | 374A |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Style Designator | ANGLE |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Opening Pressure Setting | 30.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPTF ALL ENDS |
| Material | COPPER ALLOY SEAT |
| Bonnet Attachment Method | THREADED |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Bonnet Type | INSIDE SPRING |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Flow Control Device | DISK |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 374A PRIMARY | Watts Regulator Company (USA) |
NSN 4820-00-985-0630 is a Valve,safety Relief, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-985-0630 has 1 cross-referenced part number: 374A (Watts Regulator Company).
There are 2 known substitutes for 4820-00-985-0630: 5935-00-666-2044, 6220-01-117-6354. Verify interchangeability with system specifications before substitution.
Key specifications for 374A: Nominal Thread Size: 0.750 INCHES ALL ENDS IN; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Thread Direction: RIGHT-HAND ALL ENDS; Style Designator: ANGLE. 18 total characteristics are documented in the Federal Logistics Information System.