Check the listing for details. EHC MS91528-1O2B BLACK SKIRTED POINTER KNOB MS91528-102B. Condition: New. Listed at 29.95 USD. EHC MS91528-1O2B BLACK SKIRTED POINTER KNOB MS91528-102B 5355-00-989-4269 NEW STOCK LOT 20699 D40 Characteristic Specifications STYLE DESIGNATOR A4 ROUND OUTSIDE DIAMETER 0.690 INCHES MINIMUM AND 0.730 INCHES MAXIMUM OVERALL THICKNESS 0.752 INCHES MINIMUM AND 0.812 INCHES MAXIMUM ATTACHMENT METHOD SETSCREWS SETSCREW HOLE QUANTITY 2 SCREW DRIVE TYPE HEXAGON SOCKET DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE 0.369 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 E18 COUNTERBORED INSIDE DIAMETER 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM COUNTERBORE DIAMETER 0.485 INCHES MINIMUM COUNTERBORE DEPTH 0.188 INCHES MINIMUM OVERALL DEPTH 0.568 INCHES MINIMUM SKIRT DESIGN NONDETACHABLE SKIRT STYLE F1 FLARED SKIRT OUTSIDE DIAMETER 1.150 INCHES MAXIMUM REFERENCE MARKING ARROW END ITEM IDENTIFICATION W/S:SONAR SETS, AN/BQS-14A/15; COMMUNICATIONS SYSTEMS AN/WSC-3; DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP); SONAR, AN/BSY-1(V); HELICOPTER, MH-53E; STURGEON CLASS SSN (637); AN/BQH-5 SONAR DATA COLLECTING SET; LOS ANGELES CLASS SSN (688); HELICOPTER, CARRIER BASED ASW, SH-60F; AIRCRAFT (AC-130H, MC-130H, EC-130E, HC-130) (NON-CORE DATA) SURFACE TREATMENT ANODIZE PASSIVATE MANUFACTURERS CODE 96906 DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS91528-102B