| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-879-3078 (008793078) |
| NCB Code | USA (00) |
| Manufacturer | Union Carbide Corp, Rego Co, Engineered Controls International |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADSR | BONNET TYPE | INSIDE SPRING |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MATT | MATERIAL | COPPER ALLOY SEAT |
| THSD | THREAD SERIES DESIGNATOR | ANPT 1ST END |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADST | BONNET ATTACHMENT METHOD | THREADED |
| ADSU | DISK LOADING METHOD | SPRING |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
| CBBL | FEATURES PROVIDED | VALVE STEM LOCK SHIELD |
| CSDC | OPENING PRESSURE SETTING | 120.0 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE OR RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| MATT | MATERIAL | COPPER ALLOY STEM |
| STYL | STYLE DESIGNATOR | ANGLE |
| Components Related to NSN - 4820-00-879-3078, 4820008793078 | ||||
| 4820-00-048-7101 (4820000487101) | 4820-01-298-9561 (4820012989561) | 4820-00-391-9342 (4820003919342) | 4820-01-318-0230 (4820013180230) | |
| 4810-01-424-2104 (4810014242104) | 4820-01-686-4523 (4820016864523) | 4820-01-484-2571 (4820014842571) | 4810-01-284-6033 (4810012846033) | |
| 4820-01-658-5111 (4820016585111) | 4820-01-286-6620 (4820012866620) | 4820-01-547-1960 (4820015471960) | 4820-01-012-1718 (4820010121718) | |
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