Zenith 1939 - 1940 Knob
Price:
$12.00
Knob for table models where the control shafts don't extend through the cabinet holes.
This knob will reach back into the cabinet. Press fit. models: 5R312, 4B-314 (1939), 4K-310. Let me know if you have a different model that uses these so I can list it here.
Dimensions: base is near 1", 3/4" tall, 1/4" hole. Shaft is 3/8" long. Will fit either a split or solid shaft.