The Valve,safety Relief, cataloged under National Stock Number 4820-00-203-7575, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-203-7575 |
| Primary Part Number | 48A-1-4-70PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | CANCELLED |
| Features Provided | VALVE STEM LOCK SHIELD |
| Material | COPPER ALLOY BODY |
| Opening Pressure Setting | 70.0 POUNDS PER SQUARE INCH LBS |
| Bonnet Attachment Method | THREADED |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Bonnet Type | INSIDE SPRING |
| Valve Discharge Flow Rate | 23.0 CUBIC FEET PER MINUTE |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | NPT FIRST END |
| Style Designator | ANGLE |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Opening Pressure Setting | 70.0 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | COPPER ALLOY SEAT |
| Thread Series Designator | NPT FIRST END |
| Style Designator | ANGLE |
| Features Provided | VALVE STEM LOCK SHIELD |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Disk Loading Method | SPRING |
| Connection Style | PLAIN (PIPE) FIRST END |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Flow Control Device | DISK |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 48A-1-4-70PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| AH15-646 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| C58449-7PC148 | Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA) |
| 112C-1/4-70PSI | F.c.kingston Co. Dba Storm Manufacturing (USA) |
| 2AH15-646 | Dresser Industries Inc Leroi Div (USA) |
| 1AC10858 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| 48-70 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| H151329 | Dresser Industries Inc Leroi Div (USA) |
| 10AC10858 | Dresser Industries Inc Leroi Div (USA) |
| 1AC10858 | Dresser Industries Inc Petroleum Equipment Div - Wayne (USA) |
| 112CSS-2-070 PRIMARY | F.c.kingston Co. Dba Storm Manufacturing (USA) |
NSN 4820-00-203-7575 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-203-7575 has 11 cross-referenced part numbers: 48A-1-4-70PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), AH15-646 (Dresser Industries Inc Leroi Div), C58449-7PC148 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), 112C-1/4-70PSI (F.c.kingston Co. Dba Storm Manufacturing), 2AH15-646 (Dresser Industries Inc Leroi Div) and 6 more.
There are 12 known substitutes for 4820-00-203-7575: 5965-00-280-7816, 5340-00-367-1464, 2520-00-383-9603 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 48A-1-4-70PSI: Features Provided: VALVE STEM LOCK SHIELD; Material: COPPER ALLOY BODY; Opening Pressure Setting: 70.0 POUNDS PER SQUARE INCH LBS; Bonnet Attachment Method: THREADED. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-203-7575 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.