| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 4820-00-835-1252
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008351252
 
 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:
 
 | 513-023PCALP167 | 34293 | HUNTINGTON INGALLS INCORPORATED |  | 9876-002PCALP167 | 96169 | ELECTRIC BOAT CORPORATION |  | E8512D51M | 01343 | ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY | 
 |  
					            | 
 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | COPPER ALLOY BODY |  |  | COPPER ALLOY AND |  |  | NICKEL ALLOY FLOW CONTROL DEVICE |  |  | NICKEL ALLOY SEAT |  |  | COPPER ALLOY STEM |  | FLOW CONTROL DEVICE | POPPET |  | CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END |  | CONNECTION STYLE | STREAMLINED WITH ONE BRAZING RING 1ST END |  | NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES 1ST END |  | DISK LOADING METHOD | SPRING |  | ADJUSTABLE PRESSURE RANGE | 401.0 TO 550.0 POUNDS PER SQUARE INCH |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MFG SPEC TYPE A1,CLASS C |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 01343 |  | DESIGN CONTROL REFERENCE | E8512D51M | 
 |  |