Rubber stoppers have a tapered shape to fit various hole sizes and provide a secure seal. The solid rubber construction can be cut to an exact length.
Rubber Stopper - Size 2 : Industrial & Scientific
Everbilt 1/2 in. White Nylon Locking Hole Plug (2-Piece) 808098 - The Home Depot
Everbilt 2-1/16 in. x 1-3/4 in. Black Rubber Stopper 808348 - The Home Depot
ABCIRH
NTN - Bearing units catalog a-21000-i
multi-process-welders-bshytjbhs140a2m52v5-64_300.jpg
B2 - Hardy Spicer, PDF, Manufactured Goods
Rubber Fountain Plugs - Marquis Gardens – Marquis Water Gardens
Ring Feder, PDF, Machines
10x NBR Oring Mechanical Seal Rubber Ring Gaskets Thickness 2.4mm/0.094 Cross section ID 40.2-135.2mm/1.583-5.323 inch - AliExpress
Camco 15-Amp Male to 30-Amp Female 12 in. L Dogbone 55163 - The Home Depot
Anchura exterior del sello 203.4 ft m de los tapones del casquillo del extremo de goma del nitrilo EC62x8 26.2 ft m : Industrial y Científico
PC400LC-8 Shop Manual, PDF, Rope
Invisibobble Power Hair Elastics -true Black - 3pk : Target
Ball Bearings Catalog - Timken