A threaded machine thread plug with integral magnet in the body usually used in lubricating or hydraulic systems.
NSN 5935-01-443-3128
NSN 6620-01-624-3933
NSN 6145-01-483-1905
NSN 6110-01-380-3047
NSN 5975-01-605-0235
NSN 6650-01-211-5579
NSN 5910-01-133-1219
NSN 6685-01-272-9452
NSN 5915-01-016-6341
NSN 6240-00-246-7242
NSN 6320-01-244-9268
NSN 4140-00-423-6663