The Valve,safety Relief, cataloged under National Stock Number 4820-00-202-7481, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-202-7481 |
| Primary Part Number | 23-M 3/4 350PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Media for Which Designed | STEAM SECOND RESPONSE |
| Style Designator | ANGLE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Disk Loading Method | SPRING |
| Maximum Operating Temp | 300.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 406.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Material | COPPER ALLOY OVERALL |
| Operating Pressure | 1200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Opening Pressure Setting | 350.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | COPPER ALLOY OVERALL |
| Opening Pressure Setting | 350.0 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | STEAM SECOND RESPONSE |
| Style Designator | ANGLE |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 1200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Media for Which Designed | AIR FIRST RESPONSE |
| Renewable Seat Ring Type | RETAINING SCREW |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Flow Control Device | DISK |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Media for Which Designed | AIR FIRST RESPONSE |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 23-M 3/4 350PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| M23A PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| M23MA | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-202-7481 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-202-7481 has 3 cross-referenced part numbers: 23-M 3/4 350PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), M23A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), M23MA (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 5 known substitutes for 4820-00-202-7481: 4820-00-202-7482, 5935-00-242-1158, 4820-00-541-2758 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 23-M 3/4 350PSI: Media for Which Designed: STEAM SECOND RESPONSE; Style Designator: ANGLE; Connection Style: PLAIN,OPTIONAL END(PIPE) SECOND END; Disk Loading Method: SPRING. 30 total characteristics are documented in the Federal Logistics Information System.