Amazon.co.jp: Durable,O Ring Seal Gasket 4mm Thickness Black NBR O Ring Seal 31/32/33/34/35/48/50mm OD Oil Resistance O Ring Seal Washer (Color : 50pcs,Size : 31x23x4mm) (Color : 50pcs, Size : 40x32x4mm) :
KOOTANS 24 Size 1200pcs Metric O-Rings Kit Nitrile Rubber O-Ring Assortment Kit for Plumbing, Automotive and Faucet Repair, NBR Sealing Seal Gaskets O Rings Set : Amazon.in: Home Improvement
uxcell 50pcs Black Nitrile Butadiene Rubber NBR O-Ring 18.77mm Inner Dia 1.78mm Width: Amazon.com: Industrial & Scientific
Amazon.co.jp: NBR O Ring P9, Pack of 10 : Industrial & Scientific
Ochoos NBR O-Ring ID 53 54.5 56 58 60 61.5 63 65 67 69 71 mm X CS 3.55mm Oil Resistant NBR Nitrile Rubber Sealing Ring - (Color: 53x3.55 IDxCS): Amazon.com: Industrial & Scientific
Amazon.co.jp: Durable,20pcs 1.9mm Thickness O Ring Seal NBR 5/6/7/8/9/18/19/20mm OD Nitrile Rubber O Rings Sealing Gaskets 70 SHORE O Type Ring (Size : 15x11.2x1.9mm) (Size : 15x11.2x1.9mm) : 産業・研究開発用品
Amazon.co.jp: Durable,10pcs NBR 5mm Thickness O Ring Seal 110/115/120/125/130/135/140/145/150/155/160mm OD Black Nitrile Rubber O-ring Sealing Gasket (Size : 160x150x5mm) (Size : 110x100x5mm) : 産業・研究開発用品