The Valve,safety Relief, cataloged under National Stock Number 4820-00-483-0877, 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 23 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-483-0877 |
| Primary Part Number | 3L |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | CANCELLED |
| Material | COPPER ALLOY BODY |
| Bonnet Attachment Method | PRESSURE SEAL, RING TYPE |
| Maximum Operating Temp | 210.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Second Connection Face to Centerline Distance | 1.125 INCHES IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| First Connection Face to Centerline Distance | 1.781 INCHES IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Thread Series Designator | NPT FIRST END |
| Thread Series Designator | NPT SECOND END |
| Bonnet Type | INSIDE SCREW |
| Connection Style | PLAIN (PIPE) FIRST END |
| Disk Loading Method | SPRING |
| Flow Control Device | POPPET |
| Adjustable Pressure Range | +75.0 TO 175.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3L PRIMARY | Watts Regulator Company (USA) |
NSN 4820-00-483-0877 is a Valve,safety Relief, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-483-0877 has 1 cross-referenced part number: 3L (Watts Regulator Company).
There are 3 known substitutes for 4820-00-483-0877: 3460-00-230-2281, 6665-01-204-8173, 5980-01-604-6767. Verify interchangeability with system specifications before substitution.
Key specifications for 3L: Material: COPPER ALLOY BODY; Bonnet Attachment Method: PRESSURE SEAL, RING TYPE; Maximum Operating Temp: 210.0 FAHRENHEIT SINGLE RESPONSE DEGF; Operating Pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-483-0877 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.