| Item Name | Valve Vacuum Regulating |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-634-8948 (006348948) |
| NCB Code | USA (00) |
| Manufacturer | Meggitt International Ltd, Aeronautical Standards Group |
| MRC | Criteria | Characteristic |
|---|---|---|
| ACKL | MEDIA FOR WHICH DESIGNED | AIR |
| ACKM | FIRST END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| ACLS | SECOND END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACMN | SECOND END NOMINAL PIPE SIZE ACCOMMODATED | 0.125 INCHES |
| ACMS | SECOND END THREAD DIRECTION | RIGHT-HAND |
| ACMX | THIRD END RELATIONSHIP WITH PRECEDING ENDS | NOT IDENTICAL WITH FIRST OR SECOND END |
| ACNV | THIRD END NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES |
| ACPE | FOURTH END RELATIONSHIP WITH PRECEDING ENDS | NOT IDENTICAL WITH FIRST, SECOND OR THIRD END |
| ACPF | FOURTH END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACQF | FOURTH END THREAD DIRECTION | RIGHT-HAND |
| ADQU | FLOW CONTROL DEVICE | DIAPHRAGM |
| ADQZ | END CONNECTION QUANTITY | 4 |
| ACLG | FIRST END NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES |
| ACMY | THIRD END CONNECTION TYPE | THREADED INTERNAL PIPE |
| ACNZ | THIRD END THREAD DIRECTION | RIGHT-HAND |
| ACQB | FOURTH END NOMINAL PIPE SIZE ACCOMMODATED | 0.375 INCHES |
| SR-1 | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN5828-3 |
| SR-1 | MANUFACTURERS CODE | 88044 |
| SR-1 | SPEC/STD CONTROLLING DATA | |
| AAFZ | BODY MATERIAL | ANY ACCEPTABLE |
| Relevant Components for NSN - 4820-00-634-8948, 4820006348948 | ||||
| 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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