IS 10482 : Part 3 : 1983 Specification for Connectors for Printed Wiring Board - Part 3 : Socket, Card Insertion, Contact Spacing 3.962 mm, Category A, Types 10482 IS-02-6/10/12/15/16/18/22-a/b-2-A/B/C-5/1-27 Or2.54/0.4