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 7035-01-448-4740
NSN 5945-00-132-0134
NSN 5925-00-920-5480
NSN 5950-00-954-0429
NSN 5990-01-437-4876
NSN 5999-00-884-0054
NSN 6320-01-215-6459
NSN 5910-01-252-8820
NSN 6320-00-160-0899
NSN 5905-00-597-6081
NSN 5925-01-542-9068
NSN 6685-00-366-6997