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National Stock Number:
3120-00-293-9764
Federal Supply Class:
3120
National Item Identification Number:
002939764
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:
| 4415H23 | 89619 | MACK TRUCKS, INC. | | 6334 | 52304 | DANA COMMERCIAL VEHICLE PRODUCTS, LLC | | 85339H | 89346 | NAVISTAR INTL CORP TRUCK BR OHIO PLANT |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND W/KEYWAYS | | CENTER HOLE KEYWAY QUANTITY | 10 | | CORNER SHAPE | CHAMFERED SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OUTSIDE DIAMETER | 2.4950 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM | | OVERALL THICKNESS | 0.2580 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM | | MAJOR DIAMETER | 1.9000 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1010 OVERALL | | MINOR DIAMETER | 1.7020 INCHES MINIMUM AND 1.7070 INCHES MAXIMUM | | SPECIAL FEATURES | ONE 0.250 IN. NOTCH ON OD PARALLEL W BORE CENTRALLY LOCATED BETWEEN KEYWAYS | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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