APG O-Ring, Series: H90, 5/16 in Inside Dia, 7/16 in Outside Dia, Cross Section: 1/16 in, Dash Number: 011, 90 Shore A Durometer, Hard Hardness, -40 to 250 deg F, Buna-N, Black, Import

ITEM FEATURES:

• The most widely used O-ring elastomer
• Excellent resistance to petroleum products
• Excellent compression set, tear and abrasion resistance
• Does not have good resistance to ozone, sunlight or weather, unless specifically compounded
• Should not be stored in direct sunlight or near motors or other electrical equipment which may generate ozone