| Item Name | Valve Vacuum Breaking |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-492-3303 (014923303) |
| NCB Code | USA (01) |
| Manufacturer | Itt Bell And Gosset Hydronics |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABJH | TEMP RATING | 300.0 DEG FAHRENHEIT |
| ACKL | MEDIA FOR WHICH DESIGNED | STEAM |
| ACKM | FIRST END CONNECTION TYPE | THREADED EXTERNAL PIPE |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ADQZ | END CONNECTION QUANTITY | 1 |
| AEVX | TEMP ADJUSTABILITY | NOT ADJUSTABLE |
| AFLG | ABSOLUTE PRESSURE SETTING | 12.0 |
| CQMM | FIRST END THREAD SERIES DESIGNATOR | NPT |
| CQYM | FIRST END NOMINAL THREAD SIZE | 0.750 INCHES |
| FEAT | SPECIAL FEATURES | 150 PSIG MAXIMUM WORKING PRESSURE; ADJUSTABLE RANGE 1/4 TO 20 (MERCURY) VACUUM; FACTORY SET TO 4 MERCURY VACUUM |
| Relevant Components for NSN - 4820-01-492-3303, 4820014923303 | ||||
| 4820-01-038-4466 (4820010384466) | 4820-01-273-0523 (4820012730523) | 4810-01-109-0757 (4810011090757) | 4820-01-252-6182 (4820012526182) | |
| 4820-00-337-1107 (4820003371107) | 4820-01-443-7595 (4820014437595) | 4820-01-184-1099 (4820011841099) | 4820-00-674-6082 (4820006746082) | |
| 4820-01-547-9309 (4820015479309) | 4820-01-346-0633 (4820013460633) | 4820-01-627-9771 (4820016279771) | 4810-01-466-3592 (4810014663592) | |
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