MIL MIL-S-19500/512B

SEMICONDUCTOR DEVICE, TRANSISTOR, PNP, SILICON SWITCHING TYPES 2N4029, 2N4033 JAN, JANTX, JANTXV, AND JANS (S/S BY MIL-PRF-19500/512C) (SUPERSEDING MIL-S-19500/512A)
standard by Military Specifications and Standards, 09/29/1994