Part Number: 2177917-4-30

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CONDITION:
NS
NAVAL SHIP SYSTEMS COMMAND80064
MILWAUKEE VALVE COMPANY, INC.76364
NAVAL SEA SYSTEMS COMMAND53711
NAVAL SHIP SYSTEMS COMMAND80064
NAVAL SEA SYSTEMS COMMAND53711
NAVAL SEA SYSTEMS COMMAND53711
MILWAUKEE VALVE COMPANY, INC.76364
THREAD CLASS3A SINGLE THREADED PORTION
ERR DEFAULT0.562 INCHES NOMINAL SINGLE THREADED PORTION
OVERALL HEIGHT0.688 INCHES NOMINAL
BODY INSIDE DIAMETER3.937 INCHES NOMINAL
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
NOMINAL THREAD SIZE4.812 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESWRENCHING FACITLITY CONSISTS OF 4 SLOTS,EQUALLY SPACED,ON THE INSIDE DIAMETER,SLOTS 1/16 IN. DEEP BY 5/16 IN. WIDE
MATERIALNICKEL ALLOY OVERALL
SURFACE TREATMENTNICKEL SEAT
STYLE DESIGNATORPLAIN THREADED
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL OR QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE
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.