Left hand side; 6 holes equally spaced on 20.25 in. Center
NSN 6145-00-150-5049
NSN 6650-01-431-9625
NSN 6105-00-258-2157
NSN 5975-01-571-7224
NSN 5920-00-967-1396
NSN 5855-01-599-3982
NSN 5945-01-323-7894
NSN 6220-00-577-3435
NSN 5950-00-899-1992
NSN 6650-01-113-7563
NSN 5965-00-612-0072
NSN 5996-01-380-4174