Usa Sealing Buna-N O-Ring - 5.3mm Wide x 170mm ID, PK 2 ZUSAH5.3X170 | Zoro
10Pcs NBR O Ring Seal Gasket CS 5mm OD 15~170mm Nitrile Butadiene Rubber Spacer Oil Resistance Washer Round Shape Black|Gaskets| - AliExpress
170mm ID x 177.1mm OD x 3.55mm CS Nitrile Butadiene Rubber O-Ring 10 P – Gavantools
2Pcs KFM O-Ring OD 71mm to 170mm Select Variations 2.0mm Cross Section [SN-T] | eBay
170X2 Oring 170mm ID X 2mm CS NBR Nitrile Acrylonitrile Butadiene ShA 70 Black O-ring Oring Sealing O ring Rubber - AliExpress Automobiles & Motorcycles
NITRILE 70 DUROMETER O-RING 170 MM ID X 2.5 MM CS | APG
NBR O-ring 164 x 3mm (OD 170mm) 70 Shore A [5 Pieces] | Tameson.com
Rubber O-Ring, 170mm x 3.5mm, 911 (70-83) – Sierra Madre Collection