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 6650-01-633-9147
NSN 6320-01-573-6490
NSN 5910-01-298-0781
NSN 6685-00-026-7691
NSN 6645-01-244-3017
NSN 6320-01-103-6218
NSN 5915-01-204-1763
NSN 5855-00-337-3679
NSN 2925-00-816-8765
NSN 6150-01-386-1831
NSN 5855-01-563-5827
NSN 5920-01-010-3293