4820-01-218-8027 SEAT,VALVE Index 4820-01-218-8029 SEAT,VALVE

National Stock Number:
4820-01-218-8028

Federal Supply Class:
4820

National Item Identification Number:
012188028

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:
8538 PIECE 2001343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
8538PC20 SPCLN01343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
A7410.001.12701343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
A7410.002.12701343ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY


Techincal Specification:
BODY INSIDE DIAMETER1.047 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATIONZZZY
OVERALL HEIGHT1.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE1.125 INCHES SINGLE THREADED PORTION
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SEAT ANGLE IN DEG0.750 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORPLAIN THREADED
TAPER MAJOR DIAMETER1.000 INCHES NOMINAL
TAPER MINOR DIAMETER0.750 INCHES NOMINAL
TAPER LENGTH0.031 INCHES NOMINAL
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH1.000 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION


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