spacers , what are they from?

[canyoncritter]

anyone know what these spacers come from?..I know they are for under the coilsprings, but who makes them, or what they came from etc.

and they are right around 3/4 of a inch thick

 

[kunar]

can you tell how the faces were machined? (saw cut, turned, ground?) i would guess they are home made. just some 2-3/4" crs round stock with a hole punched in it. i would think if they were mass produced, the surface finish inside that taper would be a bit cleaner

 

[canyoncritter]

they look like have been turned, you can see a broach pattern in them.

took some and paper to one of them and found a part number.Its a sperical washer(the female half) and the part number comes back to a boeing part, as a levling washer.