Gray color
A nut, flat on top and bottom, having four flat sides of which two parallel sides are shorter than the other two. For items having a thickness (or height) exceeding two times the width, use post, electrical-mechanical equipment. (when height or thickness and/or width is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 2925-00-147-3801
NSN 6320-01-108-5933
NSN 5965-01-607-3598
NSN 5905-01-494-6366
NSN 5985-00-273-1650
NSN 6650-01-202-8014
NSN 6130-01-062-0924
NSN 6650-01-210-9004
NSN 5990-01-131-9055
NSN 5915-01-422-8722
NSN 5895-01-435-5497
NSN 4140-01-476-4468