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National Stock Number:
3120-00-733-7356
Federal Supply Class:
3120
National Item Identification Number:
007337356
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:
| 47KM14 | 89619 | MACK TRUCKS, INC. | | 7337356 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| MATERIAL | STEEL COMP 4615 OVERALL | | HARDNESS RATING | 60.0 ROCKWELL C MINIMUM AND | | 63.0 ROCKWELL C MAXIMUM OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 3.7180 INCHES MINIMUM AND | | 3.7190 INCHES MAXIMUM | | CORNER SHAPE | SQUARE OUTSIDE LEFT CORNER | | CHAMFERED OUTSIDE RIGHT CORNER | | SQUARE INSIDE RIGHT CORNER | | SQUARE INSIDE LEFT CORNER | | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER | | SQUARE LEFT FLANGE BODY CORNER | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | FLANGE THICKNESS | 0.3990 INCHES NOMINAL | | OVERALL THICKNESS | 0.4380 INCHES NOMINAL | | SHANK OUTSIDE DIAMETER | 3.3280 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 2.5020 INCHES NOMINAL | | SURFACE FINISH | 32.0 MICROINCHES LEFT SIDE | | 32.0 MICROINCHES RIGHT SIDE | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | FEATURES PROVIDED | CASEHARDENED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19207 | | DESIGN CONTROL REFERENCE | 7337356 |
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