AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-111-2421 (001112421) |
| NCB Code | USA (00) |
| Manufacturer | Triumph Thermal Systems Inc, Henry Technologies Limited, Cecom Lr Center |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | INTEGRAL |
| ADSU | DISK LOADING METHOD | SPRING |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| CBBL | FEATURES PROVIDED | VALVE STEM LOCK SHIELD |
| CQGM | MAXIMUM OPERATING PRESSURE | 450.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |
| CSDC | OPENING PRESSURE SETTING | 350.0 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | NPT 1ST END |
| Relevant Components for NSN - 4820-00-111-2421, 4820001112421 | ||||
| 4810-00-872-2016 (4810008722016) | 4810-01-701-8537 (4810017018537) | 4820-01-147-9334 (4820011479334) | 4820-01-654-7545 (4820016547545) | |
| 4820-01-701-6726 (4820017016726) | 4820-01-310-4503 (4820013104503) | 4820-01-346-3872 (4820013463872) | 4820-01-477-2791 (4820014772791) | |
| 4810-01-665-1605 (4810016651605) | 4820-01-487-1839 (4820014871839) | 4820-01-528-2828 (4820015282828) | 4820-01-340-1265 (4820013401265) | |
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