3120-00-813-3749 BEARING,WASHER,THRUST Index 5330-00-813-3751 PACKING,PREFORMED

National Stock Number:
3120-00-813-3750

Federal Supply Class:
3120

National Item Identification Number:
008133750

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:
2640-808X01 PC696169ELECTRIC BOAT CORPORATION
2640-808X1PC696169ELECTRIC BOAT CORPORATION
845-4687577 ITEM 4653711NAVAL SEA SYSTEMS COMMAND
2640-859X1PC1196169ELECTRIC BOAT CORPORATION


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