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National Stock Number: 4820-01-012-6847
Federal Supply Class: 4820
National Item Identification Number: 010126847
Description: VALVE,RESTRICTOR CHECK
Detail: A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.
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Manufacturer Information:
5590-139 | 18355 | THE BOEING COMPANY | 5590-139 | 76301 | THE BOEING COMPANY | 68B690101-139 | 76301 | THE BOEING COMPANY | 7M845-3 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
APERTURE DIAMETER | 0.139 INCHES NOMINAL | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | CONNECTION STYLE | GASKET SEAL (TUBE) ALL ENDS | CRITICALITY CODE JUSTIFICATION | FEAT | DISK LOADING METHOD | SPRING | FLOW CONTROL DEVICE | POPPET | MATERIAL | STEEL CORROSION RESISTING OVERALL | MOUNTING POSITION | HORIZONTAL OR VERTICAL | NOMINAL THREAD SIZE | 0.718 INCHES ALL ENDS | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL | STYLE DESIGNATOR | STRAIGHT THRU | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE | SURFACE TREATMENT | PASSIVATE | THREAD CLASS | 3A ALL ENDS | THREAD DIRECTION | RIGHT-HAND ALL ENDS | THREAD SERIES DESIGNATOR | UNS ALL ENDS | THREAD QUANTITY PER INCH | 20 ALL ENDS | VALVE OPERATION METHOD | AUTOMATIC |
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