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National Stock Number: 4820-00-118-2829
Federal Supply Class: 4820
National Item Identification Number: 001182829
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:
17181 | 00198 | PRATT & WHITNEY CANADA CORP | 17181 | 77445 | RTX CORPORATION |
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Techincal Specification:
STYLE DESIGNATOR | PLAIN FLANGED | FLANGE DIAMETER | 2.632 INCHES MINIMUM AND | | 2.633 INCHES MAXIMUM | BODY OUTSIDE DIAMETER | 2.273 INCHES MINIMUM AND | | 2.277 INCHES MAXIMUM | BODY INSIDE DIAMETER | 2.182 INCHES MINIMUM AND | | 2.192 INCHES MAXIMUM | FLANGE SEAT TO DISK END HEIGHT | 0.436 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | UNDER FLANGE HEIGHT | 0.136 INCHES MINIMUM AND | | 0.144 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 | 90.000 NOMINAL | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 00198 | DESIGN CONTROL REFERENCE | 17181 |
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