Purpose
Form for supporting the coil windings.
Specifications
Plastic, 3 inches inner diameter by 3 inches long, with 3/4 inch center opening
Quantity
One
Tolerance
Opening needs to be +/- 20%. Length of spool can be +/- 40%. Material needs to be non-metallic, nonmagnetic,
and adequately sturdy.
Sourcing
Google for “Coil Spool” providers
5lb Pittsfield Spool: http://www.precision-spools.com/plastic-spools.html