A threaded machine thread plug with integral magnet in the body usually used in lubricating or hydraulic systems.
NSN 6240-01-641-0816
NSN 6135-01-163-0332
NSN 2925-00-943-2263
NSN 5950-00-639-9675
NSN 6645-00-456-7653
NSN 5915-00-451-3226
NSN 6610-00-960-5711
NSN 5945-00-121-5906
NSN 5985-00-949-6681
NSN 5945-01-083-1621
NSN 5930-01-632-0893
NSN 5855-01-332-7594