Neoprene Rubber Washer Spacer 1-3/4" OD x 5/8" ID x 1/4" thick 4 Pack | eBay
6 Aluminum 3/8" Bolt Spacers - 1”OD X 3/8 ID X 1” long - Made In USA | eBay
Neoprene Rubber Washer Spacer 1" OD x 3/8" ID x 1/4" thick 4 Pack | eBay
Amazon.com: (4 Pack) Thick Neoprene Rubber Washers 3/4" OD X 3/8" ID X 1/4" Thickness - Primal23 Industrial Neoprene Rubber Spacer… : Industrial & Scientific
AC PERFORMANCE Aluminum Fuel Oil Pump Inlet Male M18 x 1.5 to 9.5mm Hose Barb Fitting Adapter with AL Spacer / Washer, Black Anodized Straight Metric to 3/8" Barb : Amazon.ca: Automotive
3/8" 10mm ID Copper Crush Washers M10 Brake Hose Spacer Flat 5/8-OD 3/8-ID fit on 10 mm Bolt Pack of 20 : Amazon.ca: Musical Instruments, Stage & Studio