With 0.500 in. Diameter and 0.750 in. Diameter knockouts; color gray
NSN 4140-01-322-1408
NSN 6110-00-747-9269
NSN 5996-01-323-7763
NSN 5895-00-021-8367
NSN 2925-01-159-0506
NSN 5855-00-185-1560
NSN 6620-00-199-8734
NSN 6150-00-473-1520
NSN 5925-01-385-2399
NSN 6320-01-220-2264
NSN 5950-01-347-7761
NSN 5920-01-138-0958
Last Updated: 02/16/2025