2815-00-403-5988 ENGINE,DIESEL Index 6680-00-403-5991 TESTER,TACHOMETER

National Stock Number:
4820-00-403-5989

Federal Supply Class:
4820

National Item Identification Number:
004035989

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:
2640-671X2PC6-2 1-2IN96169ELECTRIC BOAT CORPORATION
2640-671X2PC6-2 1-2INQ303950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-671X2PC6-2 1-2INQA03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-671X2PC6QA03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-671X3PC7Q303950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-671X3PC7QA03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2180979PC6-2 1-2INQ303950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2180979PC6-2 1-2INQA03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
SS845-2180979PC6-2 1-2IN80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONGS,THE POLYMER CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
OVERALL HEIGHT0.625 INCHES NOMINAL
SEAT RADIUS0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSITEMS THAT SUPPORT A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
CRITICALITY CODE JUSTIFICATIONZZZY
BODY OUTSIDE DIAMETER3.621 INCHES MINIMUM AND 3.623 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
MATERIALPLASTIC POLYAMIDE OVERALL
BODY INSIDE DIAMETER2.125 INCHES NOMINAL
STYLE DESIGNATORPLAIN
SPECIAL TEST FEATURESQUALITY ASSURANCE TESTED FOR SUBMARINE SAFETY PROGRAM


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