Having 7 (5.1 millimeter diameter) holes used to fasten down to equipment; cover must go through a two step homogenizing process to make more resistant to different solvents; all edges are chamfered and special treatment
NSN 5950-00-104-7526
NSN 5960-01-307-6692
NSN 6610-00-664-2190
NSN 5999-01-240-2204
NSN 5935-01-589-1666
NSN 6145-01-029-4184
NSN 5975-01-106-9804
NSN 6105-01-577-0014
NSN 5835-01-191-3405
NSN 5996-01-219-6675
NSN 6220-01-197-7387
NSN 6610-01-338-6272