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 6645-00-008-3944
NSN 6145-01-569-6577
NSN 5895-01-497-4424
NSN 6105-00-571-4391
NSN 6130-01-443-2448
NSN 6320-01-029-4220
NSN 5895-00-258-9135
NSN 6685-01-368-3262
NSN 4140-01-400-3610
NSN 6685-00-933-6194
NSN 5915-01-444-2860
NSN 7035-01-018-5087