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New Old Stock K40Y-9B Soviet military paper in oil (PIO) capacitor - .022uf/400v. This is the B version which has the non-conductive coating on the case.
The K40Y-9 are high quality PIO capacitors made for Russian military. The conductor is made of aluminum foil and the dielectric is oil saturated paper, glass sealed in a metal body. These capacitors provide excellent sonic characteristics, and a high tolerance within a wide temperature range. 022 is common value in Les Pauls, SG's ES Series, Epiphones, even some newer Fenders. Super nice cap. These are getting harder and harder to find.