- ORB BOSS Hydraulic Fitting SAE 900 O-Ring Seal Kit (Buna-N 70-255 Piece Kit, 12 Sizes)$$Plumbing & HVAC

Includes high quality BN70 (Buna Nitrile 70 durometer) o-rings - the most common o-ring material for hydraulic ORB/BOSS fittings due to it’s excellent sealing ability and resistance to oils and hydraulic fluid. Service temperature of -40F to 250F. Includes all 12 BOSS/ORB o-ring sizes between -904 to -916. 255 total o-rings. Used in sealing straight thread tube fittings (ORB / O-Ring Boss Type) in hydraulic equipment O-Rings are conveniently sorted by size in individual compartments within the divider box with a convenient o-ring size chart included on the kit to quickly and easily size up and identify the o-ring you need. Manufactured and Warrantied by Captain O-Ring LLC. Proudly assembled in the USA!