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National Stock Number:
3120-00-807-4570
Federal Supply Class:
3120
National Item Identification Number:
008074570
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.
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Manufacturer Information:
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED INSIDE LEFT CORNER | | CORNER SHAPE | CHAMFERED INSIDE RIGHT CORNER | | CORNER SHAPE | SQUARE LEFT FLANGE BODY CORNER | | CORNER SHAPE | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER | | CORNER SHAPE | SQUARE OUTSIDE LEFT CORNER | | CORNER SHAPE | SQUARE OUTSIDE RIGHT CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.6800 INCHES NOMINAL | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | LUBRICATION FEATURE | GROOVE FLAT UNFINISHED SURFACE | | OUTSIDE DIAMETER | 5.0000 INCHES NOMINAL | | OVERALL THICKNESS | 0.3500 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | SPECIAL FEATURES | SIX GROOVES ON EACH SIDE | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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