| 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 | ||||
| 4810-20-003-8822 (4810200038822) | 4810-01-014-8016 (4810010148016) | 4810-01-084-1238 (4810010841238) | 4810-01-411-7729 (4810014117729) | |
| 4820-01-408-3745 (4820014083745) | 4820-01-456-9072 (4820014569072) | 4820-01-297-1947 (4820012971947) | 4820-01-135-8329 (4820011358329) | |
| 4820-00-214-6773 (4820002146773) | 4810-01-588-5008 (4810015885008) | 4820-01-538-8242 (4820015388242) | 4820-01-628-7496 (4820016287496) | |
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