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 2925-00-200-0085
NSN 5960-01-448-3497
NSN 6220-00-001-5370
NSN 6685-00-216-6676
NSN 5999-01-101-1479
NSN 5855-01-461-2741
NSN 5998-00-397-4162
NSN 6685-01-543-6410
NSN 6135-00-553-7995
NSN 5930-01-615-7948
NSN 5925-00-961-1202
NSN 5920-00-554-0437