The Valve,safety Relief, cataloged under National Stock Number 4820-00-202-8260, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-202-8260 |
| Primary Part Number | 66191 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Face to Face Distance | 3.375 INCHES IN |
| Bolt Hole Nominal Diameter | 0.562 INCHES SECOND END IN |
| Flange Face Design | PLAIN SECOND END |
| Bolt Circle Nominal Diameter | 3.125 INCHES SECOND END IN |
| Nominal Outside Diameter | 4.250 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Bolt Hole Quantity | 4 FIRST END |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC |
| Bolt Circle Nominal Diameter | 3.500 INCHES FIRST END IN |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bolt Circle Nominal Diameter | 3.500 INCHES FIRST END IN |
| Operating Pressure | 900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Face to Face Distance | 3.375 INCHES IN |
| First Connection Face to Centerline Distance | 3.750 INCHES IN |
| Flange Face Design | RAISED STRAIGHT FIRST END |
| Bolt Hole Nominal Diameter | 0.687 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.875 INCHES FIRST END IN |
| Style Designator | ANGLE |
| Adjustable Pressure Range | +558.0 TO 677.0 POUNDS PER SQUARE INCH LBS |
| Bolt Hole Quantity | 4 SECOND END |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Style Designator | ANGLE |
| Disk Loading Method | SPRING |
| Flow Control Device | POPPET |
| First Connection Face to Centerline Distance | 3.750 INCHES IN |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-202-8260 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 4820-00-202-8260 has 2 cross-referenced part numbers: 66191 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 66191 (Kunkle Industries Inc Lonergan Valve Div).
There are 5 known substitutes for 4820-00-202-8260: 5342-01-038-2710, 5360-01-119-4851, 1650-01-473-1479 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 66191: Face to Face Distance: 3.375 INCHES IN; Bolt Hole Nominal Diameter: 0.562 INCHES SECOND END IN; Flange Face Design: PLAIN SECOND END; Bolt Circle Nominal Diameter: 3.125 INCHES SECOND END IN. 30 total characteristics are documented in the Federal Logistics Information System.