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National Stock Number: 4820-00-347-8621
Federal Supply Class: 4820
National Item Identification Number: 003478621
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:
| 8R7641-2 | 26044 | SAF INDUSTRIES LLC |
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Techincal Specification:
| APERTURE DIAMETER | 0.036 INCHES NOMINAL0.036 INCHES NOMINAL | | CONNECTION STYLE | FLARED (TUBE) FIRST ENDFLARED (TUBE) FIRST END | | CONNECTION TYPE | THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END | | FLOW CONTROL DEVICE | POPPETPOPPET | | MATERIAL | RUBBER SYNTHETIC PACKING | | MATERIAL | RUBBER SYNTHETIC PACKINGSTEEL CORROSION RESISTING FLOW CONTROL DEVICE | | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTALHORIZONTAL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.437 INCHES FIRST END0.437 INCHES FIRST END | | OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | SPECIAL FEATURES | 2.250 IN. LG OVER-ALL,0.688 IN. ACROSS FLATS | | SEAT ANGLE | 37.0 DEGREES FIRST END | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD CLASS | 3A FIRST END3A FIRST END | | THREAD DIRECTION | RIGHT-HAND FIRST ENDRIGHT-HAND FIRST END | | THREAD QUANTITY PER INCH | 20 FIRST END20 FIRST END | | THREAD SERIES DESIGNATOR | UNF FIRST END |
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