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National Stock Number:
3120-01-245-4151
Federal Supply Class:
3120
National Item Identification Number:
012454151
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:
| 1264-1169 | 72314 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. |
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Techincal Specification:
| MATERIAL | IRON COMP B OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-5687,TYPE 2 GRADE 4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND W/FLAT | | OUTSIDE DIAMETER | 1.3800 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0580 INCHES MINIMUM AND | | 0.0600 INCHES MAXIMUM | | MINOR DIAMETER | 0.8130 INCHES NOMINAL | | LUBRICATION MATERIAL | LUBRICATING OIL | | SPECIAL FEATURES | THREE MOUNTING HOLES,0.1040 IN. DIA,COUNTERSUNK TO 0.1720 IN. MIN,0.1920 IN. MAX DIA,BY 82 DEGREES |
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