10PCS NBR O-Ring Seal CS 3.5mm Nitrile Butadiene Rubber Ring Gasket OD 12mm~55mm Prevent Oil/Air/Water Leakage Sealing Washer

O-ring Description:

Name: NBR  O-Ring seal

Meterial: Nitrile Butadiene Rubber

Shore Hardness: About 70

Temperature resistance: -25℃ to +100℃

Feature: Oil-resistance ,Wear-resistance, Insulation , Waterproof , Non-toxic ,Corrosion-resistance

Dimension measurement of O-ring

NOTE:

Please allow a little size error due to manual measurement .

{ inner  diameter (ID) +2*thickness (CS) = outer diameter (OD) }