SPX OTC 205061 Engine Mounting Adapter Owners Manual - Enlarge page 1 
From inside (document excerpt):
Form No. 100356 Parts List for: 205061 Engine Mounting Adapter Component for OTC No. 1750A Item No. 1 2 3 4 5 Part No. 19654 61103 52083 19656 12306 No. Req’d Description 4 1 2 4 4 Cap Screw Plate Side Plate Cap Screw Nut CAUTION: To prevent personal injury, wear eye protection that meets ANSI Z87.1 and OSHA standards. SPX Corporation Refer to any operating instructions included with the product for detailed information about operation, testing, disassembly, reassembly, and preventive maintenance.
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Items found in this parts list have been carefully tested and selected by OTC. Therefore: Use only genuine OTC replacement parts. Additional questions can be directed to our Technical Service Dept. Sheet No. Issue Date: 1 of 1 Rev. B, 3-6-03 …