Check the listing for details. (1 PC) EHC MS91528-0F3B KNOB NSN# 5355-01-011-6559. Condition: New. Listed at 29.95 USD. (1 PC) EHC MS91528-0F3B KNOB NSN# 5355-01-011-6559 NEW STOCK LOT 17178 CJ14 Characteristic Specifications STYLE DESIGNATOR A4 ROUND OUTSIDE DIAMETER 0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM OVERALL THICKNESS 0.625 INCHES MINIMUM AND 0.685 INCHES MAXIMUM ATTACHMENT METHOD SETSCREWS SETSCREW HOLE QUANTITY 2 SCREW DRIVE TYPE HEXAGON SOCKET DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE 0.325 INCHES MAXIMUM THREAD SERIES DESIGNATOR UNC SCREW HOLE NOMINAL THREAD SIZE 0.112 INCHES SCREW HOLE THREAD QUANTITY PER INCH 40 SCREW HOLE GRIPPING SURFACE CONDITION GRIP AID SHAFT ACCOMMODATION STYLE E4 FLATTED ONE SIDE INSIDE DIAMETER 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM OVERALL DEPTH 0.560 INCHES MINIMUM INSIDE WIDTH 0.107 INCHES MINIMUM AND 0.112 INCHES MAXIMUM SKIRT DESIGN NONDETACHABLE SKIRT STYLE F1 FLARED SKIRT OUTSIDE DIAMETER 0.900 INCHES MAXIMUM COLOR BLACK REFERENCE MARKING ARROW SPECIAL FEATURES SHAFT ACCOMMODATION HOLE COUNTERBORED 0.300 IN. MIN DIA 0.177 IN. MIN DEPTH (NON-CORE DATA) SURFACE LUSTER LUSTERLESS (NON-CORE DATA) SURFACE TREATMENT PASSIVATE MANUFACTURERS CODE 96906 DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS91528-0F3B