| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-450-8766 (014508766) |
| NCB Code | USA (01) |
| Manufacturer | Dresser Industries Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1990C-1 X .75 275PSI | dresser industries inc | valve safety relief | RFQ |
| 1990 | dresser industries inc | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AGAV | III END ITEM IDENTIFICATION | STRATEGIC SEALIFT CONVERSION SHIPS CLASS |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE STEAM 2ND RESPONSE |
| STYL | STYLE DESIGNATOR | C1 ANGLE |
| MATT | MATERIAL | STEEL COMP 316 BODY STEEL COMP 316 FLOW CONTROL DEVICE STEEL COMP 410 STEM |
| AEHZ | MAXIMUM OPERATING TEMP | 400.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| AEQJ | MINIMUM OPERATING TEMP | -20.0 DEG FAHRENHEIT |
| THSD | THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| CQGM | MAXIMUM OPERATING PRESSURE | 2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A479, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE BODY ASTM A479, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE ASTM A276, TYPE 410, COND T ASSN STD SINGLE MATERIAL RESPONSE STEM |
| ADQU | FLOW CONTROL DEVICE | DISK |
| TMQY | FURNISHED ITEMS AND QUANTITY | 1 LEVER |
| CSDC | OPENING PRESSURE SETTING | 275.0 POUNDS PER SQUARE INCH |
| ADSU | DISK LOADING METHOD | SPRING |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END |
| CQJX | NOMINAL THREAD SIZE | 1.000 INCHES 1ST END 0.750 INCHES 2ND END |
| FEAT | SPECIAL FEATURES | CARBON STEEL(PHOSPHATED)SPRING;0.110 SQ.IN.ORIFICE AREA |
| Relevant Components for NSN - 4820-01-450-8766, 4820014508766 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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