4820-01-442-9945 DISK,VALVE Index 2040-01-442-9947 STANCHION,DECK RAILING

National Stock Number:
4820-01-442-9946

Federal Supply Class:
4820

National Item Identification Number:
014429946

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:
6397434-X21XXX-0022L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
6397434-X21XXX-02253711NAVAL SEA SYSTEMS COMMAND
6397437-X21XXX-022L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X21XXX-022L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X21XXX-022SS03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X21XXX-02253711NAVAL SEA SYSTEMS COMMAND
803-6397434-X21XXX-049L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X21XXX-04953711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER0.930 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.122 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOBALT COMP 1 OVERALL
NOMINAL THREAD SIZE0.7656 INCHES SINGLE THREADED PORTION
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD QUANTITY PER INCH24 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION


Click here to Register for Free 30-day Trial

© 2026 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us