Central aperture 0.250 in. Diameter flattened on two sides to 0.188 in. W.Four slotted holes 0.094 in. Diameter each 22.5 degrees from center line parallel to flatsides.
NSN 6620-01-098-9866
NSN 5998-01-068-4955
NSN 6610-01-452-6774
NSN 5945-00-490-3696
NSN 6685-01-358-4130
NSN 5855-01-286-9928
NSN 6110-00-605-7496
NSN 6130-00-186-0737
NSN 6645-01-554-2871
NSN 6320-01-185-3857
NSN 5999-00-066-9685
NSN 5910-01-534-7699
Last Updated: 01/20/2025