NEF O Ring Kit, Rubber Metric O-Ring Assortment, 32 Sizes, 419 Pieces: Amazon.com: Industrial & Scientific
Rubber o-ring sizes, Metric O Ring Size Chart, O Ring Standard Sizes, Silicone O Rings Sizes
KOOTANS 1200Pcs Nitrile Rubber O Ring Kit 24 Sizes O Rings Assortment Kit Set Sealing Washer NBR Metric o-Ring Assortment for Plumbing, Gas, Automotive and Faucet Repair, Resist Oil and Heat O-Rings:
Parker 5-Dash Series Sizing Guide Now Available for Download
O-RING CHART NN - Hercules for o-rings, hydraulic seals, cylinders