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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) | 01-573-3911 (015733911) |
| NCB Code | USA (01) |
| Manufacturer | Watts Regulator Co Cleveland |
| MRC | Criteria | Characteristic |
|---|---|---|
| STYL | Style Designator | STRAIGHT THRU |
| FEAT | Special Features | BODY MATERIAL IS BRASS |
| CXCY | Part Name Assigned By Controlling Agency | VACUUM RELIEF VALVE |
| CQGM | Maximum Operating Pressure | 15.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| AWLS | Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| MRC | Decoded Requirement | Clear Text Reply |
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | Connection Style | PLAIN (PIPE) ALL ENDS |
| MATT | Material | COPPER ALLOY BODY |
| AGAV | End Item Identification | DOMESTIC WATER HEATERS AND SUPPLY TANKS;TABLE TOP HEATERS;JACKETED STEAM KETTLES;UNIT HEATERS;LOW PRESSURE STEAM SYSTEMS;STEAM COIL HEATERS |
| THSD | Thread Series Designator | NPT ALL ENDS |
| AQLR | Valve Operation Method | AUTOMATIC |
| ADQU | Flow Control Device | DISK |
| ADSU | Disk Loading Method | SPRING |
| Relevant Components for NSN - 4820-01-573-3911, 4820015733911 | ||||
| 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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