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National Stock Number:
4820-00-008-7992
Federal Supply Class:
4820
National Item Identification Number:
000087992
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:
| 113651P20 | 00198 | PRATT & WHITNEY CANADA CORP |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN | | OVERALL HEIGHT | 0.462 INCHES MINIMUM AND | | 0.464 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 3.089 INCHES MINIMUM AND | | 3.090 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 2.490 INCHES MINIMUM AND | | 2.510 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 | | TAPER MINOR DIAMETER | 2.703 INCHES MINIMUM AND | | 2.713 INCHES MAXIMUM | | TAPER MAJOR DIAMETER | 2.973 INCHES MINIMUM AND | | 2.983 INCHES MAXIMUM | | TAPER LENGTH | 0.368 INCHES MINIMUM AND | | 0.396 INCHES MAXIMUM | | SEAL ACCOMMODATION TYPE | GROOVED | | CRITICALITY CODE JUSTIFICATION | ADAR | | FSC APPLICATION DATA | ACFT ENG R2000 |
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