|  | 
                            
                                |   | 
		                    
		                        | National Stock Number:
 4820-00-837-9969
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008379969
 
 Description:
 VALVE,SAFETY RELIEF
 
 Detail:
 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
 | 
		                    
		                        | 
 Manufacturer Information:
 
 | A318383-3 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 | 
 | 
				            
					            | 
 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE |  | VALVE OPERATION METHOD | AUTOMATIC |  | FLOW CONTROL DEVICE | POPPET |  | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |  | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END |  | THREAD SERIES DESIGNATOR | UN 1ST END |  | NOMINAL THREAD SIZE | 1.750 INCHES 1ST END |  | THREAD QUANTITY PER INCH | 12 1ST END |  | THREAD CLASS | 3A 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | RENEWABLE SEAT RING TYPE | PRESSED-IN |  | BONNET TYPE | PACKING RETAINING |  | DISK LOADING METHOD | SPRING |  | ADJUSTABLE PRESSURE RANGE | 910.0 TO 1010.0 POUNDS PER SQUARE INCH |  | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 80020 |  | DESIGN CONTROL REFERENCE | A318383-3 | 
 |