4820-01-023-2648, SEAT,VALVE

National Stock Number:
4820-01-023-2648

Federal Supply Class:
4820

National Item Identification Number:
010232648

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.

Manufacturer Information:

94379

11599

TRIUMPH ENGINE CONTROL SYSTEMS LLC

Techincal Specification:

BODY INSIDE DIAMETER	0.281 INCHES MINIMUM AND 0.285 INCHES MAXIMUM
FLANGE DIAMETER	0.620 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT	0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM BODY
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM FACE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 416SE OVERALL
NOMINAL THREAD SIZE	0.437 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPE	FLAT
SPECIAL FEATURES	HEX STOCK;OVERALL IMMUNIZE IAW PSM 903
STYLE DESIGNATOR	THREADED FLANGED
THREAD CLASS	2A SINGLE THREADED PORTION
THREAD LENGTH	0.378 INCHES MINIMUM AND 0.468 INCHES MAXIMUM SINGLE THREADED PORTION
THREAD SERIES DESIGNATOR	UNF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT	0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM

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