The Valve,safety Relief, cataloged under National Stock Number 4820-00-840-4286, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-840-4286 |
| Primary Part Number | 48A1-4IN220PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Material | COPPER ALLOY OVERALL |
| Opening Pressure Setting | 220.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT FIRST END |
| Style Designator | ANGLE |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SECOND RESPONSE |
| Features Provided | VALVE STEM LOCK SHIELD |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Bonnet Type | INSIDE SCREW |
| Media for Which Designed | AIR FIRST RESPONSE |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Bonnet Attachment Method | INTEGRAL |
| Valve Discharge Flow Rate | 118.0 CUBIC FEET PER MINUTE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Disk Loading Method | SPRING |
| Thread Direction | RIGHT-HAND FIRST END |
| Maximum Operating Temp | 250.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Flow Control Device | POPPET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 48 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 112CSS-4-220 | F.c.kingston Co. Dba Storm Manufacturing (USA) |
| 48A | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 48A1-4IN220PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 112C1-4-220PDI | F.c.kingston Co. Dba Storm Manufacturing (USA) |
NSN 4820-00-840-4286 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 4820-00-840-4286 has 5 cross-referenced part numbers: 48 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 112CSS-4-220 (F.c.kingston Co. Dba Storm Manufacturing), 48A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 48A1-4IN220PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 112C1-4-220PDI (F.c.kingston Co. Dba Storm Manufacturing).
There are 12 known substitutes for 4820-00-840-4286: 4820-00-005-7394, 4820-00-027-0994, 4940-00-181-7590 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 48A1-4IN220PSI: Material: COPPER ALLOY OVERALL; Opening Pressure Setting: 220.0 POUNDS PER SQUARE INCH LBS; Thread Series Designator: NPT FIRST END; Style Designator: ANGLE. 20 total characteristics are documented in the Federal Logistics Information System.