4140-01-256-9871 IMPELLER,FAN,CENTRIFUGAL Index 4320-01-256-9874 PUMP,CENTRIFUGAL

National Stock Number:
4820-01-256-9873

Federal Supply Class:
4820

National Item Identification Number:
012569873

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:
803-4384536-4XXX-13(SPCLN)80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER1.104 INCHES MINIMUM AND
1.114 INCHES MAXIMUM
BODY INSIDE DIAMETER1.105 INCHES MINIMUM AND
1.113 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.229 INCHES MINIMUM AND
0.239 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.105 INCHES MINIMUM AND
0.115 INCHES MAXIMUM
MATERIALNICKEL ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG45.000 NOMINAL
SEAL ACCOMMODATION TYPEGROOVED
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE1.188 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH20 SINGLE THREADED PORTION
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.172 INCHES NOMINAL SINGLE THREADED PORTION
SPECIAL FEATURESINSPECTION PER MIL-I-45208; SHIPMENT AND STORAGE PER MIL-STD-129; CLEAN PER MIL-STD-767
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CRITICALITY CODE JUSTIFICATIONZZZY
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCE803-4384536-4XXX-13(SPCLN)


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