Qty 4 - 624ZZ Ball Bearings Qty 2 - 606ZZ Ball Bearings Qty 2 - 608ZZ Ball Bearings Qty 1 - Compression Spring, McMaster-Carr P/N 9435K93 Qty 1 - O-Ring Size -237, McMaster-Carr P/N: 9396K226 Qty 1 - O-Ring Size -254, McMaster-Carr P/N: 9396K245 Qty 1 - 1/4" PTFE Tubing, McMaster-Carr P/N: 5239K12 Qty 3 - M3 x 30mm SHCS Qty 3 - M3 Hex Nut Qty 1 - M4 x 40mm SHCS Qty 1 - M4 x 30mm BHCS Qty 2 - M4 x 16mm SHCS Qty 3 - M4 Flat Washer Qty 2 - M4 NyLoc Hex Nut Qty 2 - M5 x 25mm SHCS Qty 2 - M5 Hex Nut Qty 1 - M6 x 40mm SHCS Qty 1 - M6 Flat Washer Qty 2 - M6 Hex Nut Qty 1 - M8 Hex Nut Qty 1 - M8 Threaded Rod (65mm Long) Qty 2 - M10 Hex Nut Qty 2 - M5 Acorn Nut Qty 2 - M5 x 35mm FHCS Qty 4 - 1/2" Tall Rubber Bumpers