The Valve,safety Relief, cataloged under National Stock Number 4820-00-027-0994, 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 18 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-027-0994 |
| Primary Part Number | 48A |
| 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 |
| Disk Loading Method | SPRING |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Attachment Method | THREADED |
| Style Designator | ANGLE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY OPENING PRESSURE SETTING AND END SIZE |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Material | COPPER ALLOY OVERALL |
| Opening Pressure Setting | 50.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT FIRST END |
| Media for Which Designed | AIR FIRST RESPONSE |
| Operating Pressure | 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | GAS, NATURAL SECOND RESPONSE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Valve Operation Method | MANUAL |
| Flow Control Device | POPPET |
| Bonnet Type | INSIDE SCREW |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 48A | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-027-0994 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 4820-00-027-0994 has 1 cross-referenced part number: 48A (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-00-027-0994: 4820-00-005-7394, 4940-00-181-7590, 4820-00-585-7859 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 48A: Thread Direction: RIGHT-HAND FIRST END; Disk Loading Method: SPRING; Maximum Operating Temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF; Bonnet Attachment Method: THREADED. 18 total characteristics are documented in the Federal Logistics Information System.