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		                        | National Stock Number:
 4820-00-445-2302
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 004452302
 
 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.
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 Manufacturer Information:
 
 | 20-03435 | 03670 | TYCO FIRE PRODUCTS LP |  | V3279PC4 | 03670 | TYCO FIRE PRODUCTS LP |  | V3435 | 03670 | TYCO FIRE PRODUCTS LP | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN |  | OVERALL HEIGHT | 0.312 INCHES NOMINAL |  | BODY OUTSIDE DIAMETER | 2.243 INCHES MINIMUM AND |  |  | 2.248 INCHES MAXIMUM |  | BODY INSIDE DIAMETER | 1.495 INCHES MINIMUM AND |  |  | 1.505 INCHES MAXIMUM |  | MATERIAL | PLASTIC POLYAMIDE OVERALL |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 30.000 NOMINAL |  | TAPER MINOR DIAMETER | 1.635 INCHES MINIMUM AND |  |  | 1.645 INCHES MAXIMUM |  | TAPER MAJOR DIAMETER | 2.031 INCHES NOMINAL |  | SPECIAL FEATURES | FOUR SLOTS EQUALLY SPACED ON PERIMETER,0.125 IN.W,0.062 IN. DEEP | 
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