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National Stock Number:
4820-00-037-5576
Federal Supply Class:
4820
National Item Identification Number:
000375576
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:
| 144355P10 | 00198 | PRATT & WHITNEY CANADA CORP | | 144355P10 | 77445 | RTX CORPORATION | | AS144355P10 | 12776 | AIRCRAFT SUPPLIES |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 2.830 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 2.367 INCHES MINIMUM AND | | 2.371 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.435 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.140 INCHES NOMINAL | | BODY STEPPED INSIDE DIAMETER | 2.665 INCHES MINIMUM AND | | 2.675 INCHES MAXIMUM FIRST STEP | | 2.335 INCHES MINIMUM AND | | 2.345 INCHES MAXIMUM SECOND STEP | | 2.276 INCHES MINIMUM AND | | 2.286 INCHES MAXIMUM THIRD STEP | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HARDNESS RATING | 90.0 ROCKWELL B MINIMUM AND | | 105.0 ROCKWELL B MAXIMUM OVERALL | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | FSC APPLICATION DATA | ACFT ENG R2800 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77445 | | DESIGN CONTROL REFERENCE | 144355P10 |
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