Standard DIN O-rings used on the male DIN fitting of many brands of first stage regulators that screws into and seals to the female DIN fitting on the cylinder valve. Used for Standard DIN Regulator Valve Size 1/2 ID x 3/32 OD x 11/16 CS 70~90 Shore A Hardness Color Black
Buna Nitrile rubber is considered the standard for most general applications. Excellent resistance to petroleum-based lubricants, hydraulic oils, gasoline, fuels, and L.P. gases. Temperature range -58 F to 248 F with intermittent service to 600 F.
