5998-00-450-0502 CIRCUIT CARD ASSEMBLY Index 9390-00-450-0504 NONMETALLIC SPECIAL SHAPED SECTI

National Stock Number:
4810-00-450-0503

Federal Supply Class:
4810

National Item Identification Number:
004500503

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.


Manufacturer Information:
2587674076M6AMZ ALABAMA INC.
258767480064NAVAL SHIP SYSTEMS COMMAND
258767480212BAE SYSTEMS LAND & ARMAMENTS L.P.


Techincal Specification:
BODY OUTSIDE DIAMETER0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.052 INCHES MINIMUM AND 0.058 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER0.245 INCHES MINIMUM AND 0.260 INCHES MAXIMUM SECOND STEP
FLANGE DIAMETER0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
SEAT ANGLE IN DEG60.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORPLAIN FLANGED
TAPER LENGTH0.088 INCHES NOMINAL
TAPER MAJOR DIAMETER0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
TAPER MINOR DIAMETER0.075 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM


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