Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy. 
Insize 3203-5A, OUTSIDE MICROMETER, 4-5″, 6928640304255
$75.04
Graduation .0001″.
Carbide measuring faces.
Ratchet stop type
Supplied with setting standards (except 0-1″).
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