| Item Name | Valve Regulating Fluid Pressure |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-190-9158 (011909158) |
| NCB Code | USA (01) |
| Manufacturer | Circor Instrumentation Technologies, Tescom Corporation, Military Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | ANGLE |
| ACKL | MEDIA FOR WHICH DESIGNED | OXYGEN,GASEOUS |
| ACKM | FIRST END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACKN | FIRST END STYLE DESIGNATOR | PLAIN |
| ACLJ | FIRST END THREAD SIZE AND SERIES/TYPE DESIGNATOR | 1/4-18 NPT |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| ACLS | SECOND END CONNECTION TYPE | UNTHREADED INTERNAL PIPE |
| ACLT | SECOND END STYLE DESIGNATOR | SOCKET |
| ACMN | SECOND END NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES |
| ACSH | SEAT MATERIAL | POLYAMIDE NYLON,MS111,AIR REDUCTION CO INC AND RUBBER,MS118,AIR REDUCTION CO INC |
| ADQU | FLOW CONTROL DEVICE | DIAPHRAGM |
| ADQV | FLOW CONTROL DEVICE MATERIAL | RUBBER,MS106,AIR REDUCTION CO INC |
| ADQZ | END CONNECTION QUANTITY | 2 |
| AEVN | REGULATION TYPE | AUTOMATIC SINGLE STAGE |
| AEVR | VALVE LOADING METHOD | SPRING |
| AEVZ | MAXIMUM INLET PRESSURE RATING | 3000.0 POUNDS PER SQUARE INCH |
| AEWA | OUTLET PRESSURE SETTING | 27.0 POUNDS PER SQUARE INCH |
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZY |
| MATT | MATERIAL | COPPER ALLOY BODY |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANING,PACKAGING AND MARKING IAW MIL-STD-1330D |
| Relevant Components for NSN - 4820-01-190-9158, 4820011909158 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
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