4020-01-241-1197 ROPE,FIBROUS Index 9905-01-241-1199 PLATE,IDENTIFICATION

National Stock Number:
4820-01-241-1198

Federal Supply Class:
4820

National Item Identification Number:
012411198

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:
21196561208TWIN DISC, INCORPORATED
211965K2171TWIN DISC INTERNATIONAL S A
211965U2621MARINE & INDUSTRIAL TRANSMISSIONS LT


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J403 UNS G10100THRU G102 00 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1010 OR STEEL COMP 1020 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE0.312 INCHES SINGLE THREADED PORTION
OVERALL HEIGHT1.797 INCHES NOMINAL
SEAL ACCOMMODATION TYPEGROOVED
SEATING SURFACE SHAPEO-RING
SPECIAL FEATURESW/ 2 FLUID PASSAGE HOLES 0.141 IN. DIA LOCATED 0.750 IN. FROM THD END
STYLE DESIGNATORPLAIN
THREAD CLASS2B SINGLE THREADED PORTION
THREAD LENGTH0.297 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
BODY OUTSIDE DIAMETER0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.375 INCHES NOMINAL FIRST STEP


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