North safety products with smoothlok ratchet for connection to hard hats.
No other part numbers with same form, fit, and function found.
NSN 5960-01-474-4843
NSN 6610-01-242-9674
NSN 6240-01-147-0379
NSN 6645-01-406-0688
NSN 5835-00-930-8500
NSN 5910-00-540-9585
NSN 6130-01-277-8377
NSN 6135-01-265-1384
NSN 5915-01-179-1069
NSN 6650-00-573-7131
NSN 5950-01-464-4196
NSN 5975-01-526-3741