3120-00-468-6415 BEARING,WASHER,THRUST Index 4920-00-468-6417 FIXTURE,AIRCRAFT MAINTENANCE

National Stock Number:
3120-00-468-6416

Federal Supply Class:
3120

National Item Identification Number:
004686416

Description:
BEARING,WASHER,THRUST

Detail:
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.


Manufacturer Information:
99-109109899995NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION
B370540K0378ROLLS-ROYCE PLC
B441988K0378ROLLS-ROYCE PLC


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