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National Stock Number:
4820-01-188-5899
Federal Supply Class:
4820
National Item Identification Number:
011885899
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:
| 29984 PIECE 4 2IN | 14959 | CRANE CO DIV VALVE DIV |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.901 INCHES MINIMUM AND 1.911 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 2.2812 INCHES NOMINAL | | FLANGE DIAMETER | 2.220 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.380 INCHES MINIMUM AND 0.384 INCHES MAXIMUM | | HARDNESS RATING | 262.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351 GR.CF-8M ASSN STD SINGLE MATERIAL RESPONSE SEAT | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
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