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National Stock Number:
4820-00-845-3990
Federal Supply Class:
4820
National Item Identification Number:
008453990
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:
| 1R3049-79 | 26044 | SAF INDUSTRIES LLC | | 32-69004-79 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CONNECTION STYLE | FLARED (TUBE) 2ND END | | CONNECTION TYPE | THREADED EXTERNAL TUBE 2ND END | | CONNECTION TYPE | THREADED INTERNAL TUBE 1ST END | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | RUBBER SYNTHETIC PACKING | | MATERIAL | STEEL COMP 303 FLOW CONTROL DEVICE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 2ND END | | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.438 INCHES 2ND END | | SPECIAL FEATURES | 2.730 IN. LG OVER-ALL,0.875 IN. ACROSS FLATS | | SEAT ANGLE | 37.0 DEGREES 2ND END | | STYLE DESIGNATOR | STRAIGHT THRU | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ANODIZE | | THREAD DIRECTION | RIGHT-HAND 2ND END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD CLASS | 3A 2ND END | | THREAD CLASS | 3B 1ST END | | THREAD QUANTITY PER INCH | 20 1ST END | | THREAD QUANTITY PER INCH | 20 2ND END | | THREAD SERIES DESIGNATOR | UNF 2ND END | | THREAD SERIES DESIGNATOR | UNF 1ST END |
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