5999-01-253-8833 TAPE,SHIELDING,ELECTRICAL Index 5315-01-253-8835 PIN,STRAIGHT,HEADLESS

National Stock Number:
3040-01-253-8834

Federal Supply Class:
3040

National Item Identification Number:
012538834

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:
2620-902PC4(0.50IN)96169ELECTRIC BOAT CORPORATION
2632-903X6PC19(0.50IN)96169ELECTRIC BOAT CORPORATION
845-2445177 PC 1980064NAVAL SHIP SYSTEMS COMMAND
845-544517780064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY INSIDE DIAMETER0.471 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER0.932 INCHES MINIMUM AND 0.942 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.122 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE0.766 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 DEG15.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.311 INCHES MINIMUM AND 0.321 INCHES MAXIMUM
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.316 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH24 SINGLE THREADED PORTION


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