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National Stock Number:
4820-00-210-5541
Federal Supply Class:
4820
National Item Identification Number:
002105541
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:
| 113646 | 00198 | PRATT & WHITNEY CANADA CORP | | 113646 | 77445 | RTX CORPORATION |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 3.069 INCHES MINIMUM AND | | 3.070 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 2.586 INCHES MINIMUM AND | | 2.590 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 2.523 INCHES MINIMUM AND | | 2.533 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.446 INCHES MINIMUM AND | | 0.449 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.136 INCHES MINIMUM AND | | 0.145 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 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77445 | | DESIGN CONTROL REFERENCE | 113646 |
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