650 EA - Rib, per Drawing # 12576896, Rev C, for the 120mm Mortar.

250 EA - Rib, per Drawing # 12576894, Rev D, for the 120mm Mortar.

400 EA - Plate, per Drawing # 12576889, Rev D, for the 120mm Mortar.

400 EA - Rib, per Drawing # 12576902, Rev C, for the 120mm Mortar.

250 EA - Support, per Drawing # 12576887, Rev D, for the 120mm Mortar.

250 EA - Support, per  Drawing # 12576892, Rev C, for the 120mm Mortar.

400 EA - Support, per Drawing # 12576883, Rev D, for the 120mm Mortar.

375 EA - Support, per Drawing # 12576890, Rev C, for the 120mm Mortar.

375 EA - Support, per Drawing # 12576891. Rev C, for the 120mm Mortar.

375 EA - Support, per Drawing # 12576893, Rev C, for the 120mm Mortar.

450 EA - Rib, per Drawing # 12576886, Rev C, for the 120mm Mortar.

125 EA -  Upper Plate, per Drawing # 12576895, Rev E, for the 120mm Mortar.

375 EA - Support, per Drawing # 12576888, Rev D, for the 120mm Mortar.