P-90 Bobbin
Your choice of '50s-style black plastic bobbin, or a modern black fiber bobbin with maple spacer and brass solder-point eyelets.
Both bobbins have 1.97" (50mm) polepiece spacing.#5982 Plastic bobbin dimensions:
3.175" x 1.191" x 0.377" tall
(80.65mm x 30.25mm x 9.58mm)
#5983 Fiber bobbin dimensions:
3.136" x 1.150" x 0.082" thick
(79.65mm x 29.21mm x 2.08mm)
Fiber bobbin's spacer measures
2.180" x 0.211" x 0.229" tall
(55.37mm x 5.35mm x 5.82mm)