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National Stock Number:
3120-00-506-8450
Federal Supply Class:
3120
National Item Identification Number:
005068450
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:
| 7954539 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | M307568 | 61465 | GARWOOD/FELLER INC GARWOOD WINCH DIV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 2.7550 INCHES MINIMUM AND 2.7600 INCHES MAXIMUM | | FLANGE THICKNESS | 0.2120 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM | | OUTSIDE DIAMETER | 4.2184 INCHES NOMINAL | | OVERALL THICKNESS | 0.3030 INCHES MINIMUM AND 0.3070 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1117 OR STEEL COMP 1118 OVERALL | | SHANK OUTSIDE DIAMETER | 3.4844 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM | | SPECIAL FEATURES | FLANGE FACE RELIEVED | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 63.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT END SURFACE OF BODY |
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