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 5910-00-528-9714
NSN 5985-01-190-8135
NSN 6645-01-486-4305
NSN 6320-00-116-3658
NSN 5925-00-557-2428
NSN 5990-00-104-4903
NSN 5910-01-259-0411
NSN 5999-00-097-3788
NSN 6220-01-479-7790
NSN 6645-00-818-9408
NSN 5985-00-828-5220
NSN 5835-01-294-5753