Boss O-Ring Kit

Boss seal O-Rings are typically used in hydraulic applications, specifically for use in sealing straight thread tube fittings in a boss.  The AS568 specification calls out specific sizes for these boss O-rings, and designates them with 900 series numbers.  The RT/Dygert Boss O-ring kit features 212 O-rings in all twenty AS568 sizes. This O-ring kit is manufactured out of solid grey plastic styrene, and features either a post or recess style O-ring retention. Also included is a brass O-ring extraction tool. Depending on the application, there are two different materials to choose from, either 90 durometer nitrile or fluorocarbon.