| 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 |
| Components Related to NSN - 4820-00-634-8948, 4820006348948 | ||||
| 4810-01-278-5440 (4810012785440) | 4820-01-192-4196 (4820011924196) | 4820-00-965-8381 (4820009658381) | 4820-01-003-7863 (4820010037863) | |
| 4820-01-216-1156 (4820012161156) | 4820-01-357-3650 (4820013573650) | 4820-01-178-4887 (4820011784887) | 4810-01-057-7341 (4810010577341) | |
| 4820-01-367-9897 (4820013679897) | 4820-01-133-9054 (4820011339054) | 4820-01-383-5396 (4820013835396) | 4820-01-351-5405 (4820013515405) | |
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