5340-01-245-8868 CLAMP,LOOP Index 7690-01-245-8870 MARKER,IDENTIFICATION

National Stock Number:
4820-01-245-8869

Federal Supply Class:
4820

National Item Identification Number:
012458869

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:
2632-912X1PC1496169ELECTRIC BOAT CORPORATION
845-244513580064NAVAL SHIP SYSTEMS COMMAND
845-2445135,PC.1480064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.562 INCHES NOMINAL
BODY OUTSIDE DIAMETER1.052 INCHES MINIMUM AND 1.057 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER1.240 INCHES MINIMUM AND 1.245 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.085 INCHES NOMINAL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SEAT ANGLE IN DEG35.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA81349-MIL-I-45208 GOVERNMENT SPECIFICATION AND 96906-MIL-STD-129 GOVERNMENT STANDARD
STYLE DESIGNATORPLAIN FLANGED


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