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 5855-01-020-7982
NSN 6240-00-924-7526
NSN 5990-01-386-5561
NSN 6130-01-442-3078
NSN 6685-01-634-0611
NSN 6220-01-441-8662
NSN 5855-00-228-8446
NSN 5910-00-205-2430
NSN 6220-00-339-5263
NSN 5960-01-106-0460
NSN 5930-01-321-7669
NSN 6685-01-343-9622