Part number H50913 is an AS568-913 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 0.986 in (25.04 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.218 in (30.94 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
This material stands up to many alcohols, petroleum-based oils, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) delivers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.
Common environments for this compound include agricultural equipment, construction equipment, and fluid power.
Stocked as H50913 and sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -913 BLACK BUNA 50D O-RING
Actual Cross Section 0.116 inch (2.95 mm)
Actual Inside Diameter 0.986 inch (25.04 mm)
Actual Outside Diameter 1.218 inch (30.94 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity