An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 5925-00-892-1115
NSN 6650-01-434-6434
NSN 5996-01-027-5054
NSN 5950-01-573-7961
NSN 5999-01-556-6121
NSN 5915-01-160-0992
NSN 5895-01-440-9605
NSN 6240-00-885-9448
NSN 6220-01-453-0548
NSN 5960-01-149-1261
NSN 5925-00-341-5875
NSN 6135-01-084-1609