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National Stock Number:
4820-00-485-7822
Federal Supply Class:
4820
National Item Identification Number:
004857822
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:
| 748934 | 77445 | RTX CORPORATION |
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Techincal Specification:
| APERTURE DIAMETER | 0.239 INCHES MINIMUM AND 0.245 INCHES MAXIMUM | | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | CONNECTION STYLE | FLARED (TUBE) ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | POPPET | | MOUNTING POSITION | HORIZONTAL | | NOMINAL THREAD SIZE | 0.438 INCHES SECOND END | | NOMINAL THREAD SIZE | 0.562 INCHES FIRST END | | SEAT ANGLE | 45.0 DEGREES ALL ENDS | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNS ALL ENDS | | THREAD QUANTITY PER INCH | 18 FIRST END | | THREAD QUANTITY PER INCH | 20 SECOND END | | VALVE OPERATION METHOD | AUTOMATIC |
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