The Valve,safety Relief, cataloged under National Stock Number 4820-00-495-2570, 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 22 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-495-2570 |
| Primary Part Number | 20126AS51SS |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | CANCELLED |
| Maximum Operating Temp | 650.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COBALT ALLOY FLOW CONTROL DEVICE |
| Connection Type | FLANGE FIRST END |
| Criticality Code Justification | ZZZY |
| Style Designator | ANGLE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Opening Pressure Setting | 2485.0 POUNDS PER SQUARE INCH LBS |
| Adjustable Pressure Range | +2401.0 TO 3000.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 74.0 GALLONS PER MINUTE |
| Material | STEEL COMP 303 BODY LINING |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Flow Control Device | DISK |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL COMP 303 PACKING |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Renewable Seat Ring Type | THREADED |
| Features Provided | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE |
| Valve Operation Method | AUTOMATIC |
| Bonnet Type | INSIDE SPRING |
| Disk Loading Method | SPRING |
| Flange Shape | ROUND FIRST END |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20126AS51SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| A15642 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20126 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-00-495-2570 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 4820-00-495-2570 has 3 cross-referenced part numbers: 20126AS51SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A15642 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20126 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 9 known substitutes for 4820-00-495-2570: 6850-00-155-6444, 5133-00-228-1375, 5895-00-342-9460 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20126AS51SS: Maximum Operating Temp: 650.0 FAHRENHEIT SINGLE RESPONSE DEGF; Material: COBALT ALLOY FLOW CONTROL DEVICE; Connection Type: FLANGE FIRST END; Criticality Code Justification: ZZZY. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-495-2570 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.