Three no. 4-40 unc-2b holes equally spaced on 1.875 in. Boltcircle diameter
An item having a major diameter of 3 or more inches (76.2mm) other than items having spoked or sumulated spoked construction, which may be under 3 inches (76.2mm) designed to be gripped by the hand to transmit rotary motion to other devices through a center axis, fabricated in the form of a solid body with simulated spokes or a recessed surface between the rim and the hub, or it may be built up in the form of a frame having a central hub connected to the rim by the spokes. It may have reference markings in the form of dots, arrows, hairline, etc., to indicate the relative position and/or direction of rotation of the item(s) with which it is used. It may also include an integral ratchet device. For similar items having a maximum diameter of less than 3 inches (76.2mm), see knob. For items calibrated in units or series of divisions denoting relative positioning of associated devices, see dial (as modified). Excludes steering wheel.
Classification: Oil seals, other than those of chapter 40, machinery parts not containing electrical features
NSN 5950-01-372-3583
NSN 5985-01-551-0685
NSN 5960-01-368-5874
NSN 5999-00-950-4835
NSN 5895-01-585-4695
NSN 5935-01-521-3204
NSN 5960-00-156-0297
NSN 2925-01-500-3300
NSN 5925-00-841-0679
NSN 6220-00-789-5880
NSN 5935-01-188-4824
NSN 6145-01-227-0659