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National Stock Number: 4820-00-413-3326
Federal Supply Class: 4820
National Item Identification Number: 004133326
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:
| 1R3142-39 | 26044 | SAF INDUSTRIES LLC | | 215-32320-39 | 80378 | TRIUMPH AEROSTRUCTURES, LLC | | 4R113-39 | 82829 | ALLEN AIRCRAFT PRODUCTS INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 7075 BODY | | STEEL COMP 303 FLOW CONTROL DEVICE | | ALUMINUM ALLOY 7075 SEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/9, ALLOY 7075 FED SPEC SINGLE MATERIAL RESPONSE BODY | | QQ-S-764, TYPE 303-CANCELLED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE | | QQ-A-225/9, ALLOY 7075 FED SPEC SINGLE MATERIAL RESPONSE SEAT | | STYLE DESIGNATOR | STRAIGHT THRU | | FLOW CONTROL DEVICE | POPPET | | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 275.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | CONNECTION STYLE | FLARELESS ALL ENDS | | SEAT ANGLE | 12.0 DEGREES ALL ENDS | | THREAD SERIES DESIGNATOR | UNJF ALL ENDS | | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS | | THREAD CLASS | 3A ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | MOUNTING POSITION | HORIZONTAL OR | | VERTICAL | | DISK LOADING METHOD | SPRING | | SPECIAL FEATURES | BULKHEAD THREAD ON INLET END,RESTRICTED FLOW 0.64 IN.GPM AT 1500 PSI |
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