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| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-495-5307 (014955307) |
| NCB Code | USA (01) |
| Manufacturer | Military Specifications, Anderson Greenwood Lp, Pentair Valves And Controls |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADST | BONNET ATTACHMENT METHOD | BOLTED |
| ADZH | RENEWABLE SEAT RING TYPE | PRESSED-IN |
| AHNC | CONNECTION STYLE | SOCKET ERR-100 |
| AWLS | CONNECTION TYPE | UNTHREADED INTERNAL PIPE ALL ENDS |
| CQGM | MAXIMUM OPERATING PRESSURE | 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| FEAT | SPECIAL FEATURES | PFOR GAS SERVICE; VENT MUST BE OPEN TO ATMOSPHERE OR PIPED TO DOWNSTREAM PIPING; VENT PLUG (FIND NO. 27) AND ASSOCIATED O-RING (FIND NO. 28) ARE NOT TO BE INSTALLED WHEN VALVE IS USED IN AN AIR SYSTEM; HAS MONEL TRIM |
| MATT | MATERIAL | NICKEL ALLOY FLOW CONTROL DEVICE |
| MATT | MATERIAL | NICKEL ALLOY STEM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE AND AMS 3660 ASSN STD 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| TMQY | FURNISHED ITEMS AND QUANTITY | 2 TAILPIECE AND 2 NUT AND 1 PLUGGED DRAIN AND 1 RELIEF PLUG |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES ALL ENDS |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADSU | DISK LOADING METHOD | SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | 165.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQCY | ADJUSTABLE PRESSURE RANGE | +76.0/+90.0 POUNDS PER SQUARE INCH |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 1 RELIEF VALVE TYPE 1751T |
| MATT | MATERIAL | COPPER ALLOY 922 BODY |
| MATT | MATERIAL | NICKEL ALLOY SEAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| STYL | STYLE DESIGNATOR | ANGLE |
| Relevant Components for NSN - 4820-01-495-5307, 4820014955307 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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