The Valve,safety Relief, cataloged under National Stock Number 4820-00-965-1215, 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 23 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 | 4820-00-965-1215 |
| Primary Part Number | 189-1-2X3-4 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Valve Discharge Flow Rate | 2950.0 CUBIC FEET PER MINUTE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Flow Control Device | DISK |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Media for Which Designed | GAS, INERT SECOND RESPONSE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Style Designator | ANGLE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Features Provided | VALVE STEM LOCK SHIELD |
| Material | STEEL CORROSION RESISTING SEAT |
| Bonnet Type | INSIDE SPRING |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY RELIEF PRESSURE RANGE AND VALVE SIZE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | COPPER ALLOY BODY |
| Bonnet Attachment Method | THREADED |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Disk Loading Method | SPRING |
| Adjustable Pressure Range | +4101.0 TO 5000.0 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 189-1-2X3-4 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 189 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| B3437 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-965-1215 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 4820-00-965-1215 has 3 cross-referenced part numbers: 189-1-2X3-4 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 189 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), B3437 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-00-965-1215: 5905-00-100-3027, 3110-00-100-9814, 5995-00-164-6494 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 189-1-2X3-4: Valve Discharge Flow Rate: 2950.0 CUBIC FEET PER MINUTE; Thread Direction: RIGHT-HAND ALL ENDS; Flow Control Device: DISK; Nominal Thread Size: 0.750 INCHES FIRST END IN. 23 total characteristics are documented in the Federal Logistics Information System.