This part is a kind of semiconductor called 5410.
Function of this product has Triple 3-Input NAND Gates.
Manufacturers : National Semiconductor
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Some of the text within the PDF file :
5410 DM5410 June 1989 5410 DM5410 DM7410 Triple 3-Input NAND Gates General Description This device contains three independent gates each of which performs the logic NAND function Features Y DM7410 Triple 3-Input NAND Gates Alternate Military Aerospace device (5410) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6500 – 1 Order Number 5410DMQB 5410FMQB DM5410J DM5410W or DM7410N See NS Package Number J14A N14A or W14B Function Table Y e ABC Inputs A X X L H B X L X H C L X X H Output Y H H H L H e High Logic Level L e Low Logic Level X e Either Low or High Logic Level C1995 National Semiconductor Corporation TL F 6500 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military [ ... ]