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 6150-01-374-2508
NSN 6610-01-152-2821
NSN 5935-01-507-3492
NSN 5920-00-152-4003
NSN 5990-00-170-4239
NSN 2925-01-327-3069
NSN 6685-01-053-4337
NSN 6150-01-577-0265
NSN 5990-01-504-9265
NSN 5835-00-655-1000
NSN 5960-01-170-4057
NSN 5895-01-004-3122