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National Stock Number:
4820-00-671-4540
Federal Supply Class:
4820
National Item Identification Number:
006714540
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:
| 297-436 | 27235 | HARDIE-TYNES CO., INC. | | 60-297PC436 | 27235 | HARDIE-TYNES CO., INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.371 INCHES MINIMUM AND 1.376 INCHES MAXIMUM | | FLANGE DIAMETER | 2.740 INCHES MINIMUM AND 2.745 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.312 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL | COBALT ALLOY FACE | | MATERIAL | STEEL BODY | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | TAPER LENGTH | 1.250 INCHES NOMINAL | | TAPER MAJOR DIAMETER | 1.907 INCHES MINIMUM AND 1.938 INCHES MAXIMUM | | TAPER MINOR DIAMETER | 1.371 INCHES MINIMUM AND 1.376 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.812 INCHES NOMINAL |
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