The Valve,safety Relief, cataloged under National Stock Number 4820-00-585-7859, 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 20 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-585-7859 |
| Primary Part Number | 48A1-4IN60PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND FIRST END |
| Flow Control Device | POPPET |
| Bonnet Type | INSIDE SPRING |
| Bonnet Attachment Method | THREADED |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY RELIEF PRESSURE SETTING AND SIZE OF VALVE |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | ANGLE |
| Thread Series Designator | NPT FIRST END |
| Opening Pressure Setting | 60.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Media for Which Designed | GAS, NATURAL SECOND RESPONSE |
| Disk Loading Method | SPRING |
| Features Provided | VALVE STEM LOCK SHIELD |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 48A1-4IN60PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 48 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 48A | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-585-7859 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 4820-00-585-7859 has 3 cross-referenced part numbers: 48A1-4IN60PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 48 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 48A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-00-585-7859: 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 48A1-4IN60PSI: Thread Direction: RIGHT-HAND FIRST END; Flow Control Device: POPPET; Bonnet Type: INSIDE SPRING; Bonnet Attachment Method: THREADED. 21 total characteristics are documented in the Federal Logistics Information System.