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		                        | National Stock Number:
 4820-00-313-3600
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 003133600
 
 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:
 
 | 129992Y2 | 0AHP5 | CURTISS-WRIGHT CONTROLS, INC. | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN |  | OVERALL HEIGHT | 0.548 INCHES MINIMUM AND |  |  | 0.552 INCHES MAXIMUM |  | BODY OUTSIDE DIAMETER | 3.593 INCHES MINIMUM AND |  |  | 3.595 INCHES MAXIMUM |  | BODY INSIDE DIAMETER | 2.939 INCHES MINIMUM AND |  |  | 2.943 INCHES MAXIMUM |  | MATERIAL | STEEL BODY |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5700 ASSN STD SINGLE MATERIAL RESPONSE BODY |  | HARDNESS RATING | 90.0 ROCKWELL B MINIMUM AND |  |  | 105.0 ROCKWELL B MAXIMUM BODY |  | SEATING SURFACE SHAPE | ANGULAR |  | SEAT ANGLE IN DEG | 45.000 NOMINAL |  | FSC APPLICATION DATA | ACFT ENG R1820 |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 0AHP5 |  | DESIGN CONTROL REFERENCE | 129992Y2 | 
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