2 1/8" X 2 1/2" (53mm X 62mm)
No markings [dry process] {tiny & no threads}
Picture courtesy Ken Willick |
U-248A: USA
2 1/8" X 2 1/2" (53mm X 62mm)
No markings [dry process] {tiny & no threads}
Picture courtesy Ken Willick |
U number assignment by Elton Gish.
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