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National Stock Number:
3120-01-189-1346
Federal Supply Class:
3120
National Item Identification Number:
011891346
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:
| MATERIAL | CARBON AND | | GRAPHITE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | PUREBON P55 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND W/KEYWAYS | | KEY LENGTH | 0.3300 INCHES MINIMUM AND | | 0.3400 INCHES MAXIMUM | | OUTSIDE DIAMETER | 4.2100 INCHES MINIMUM AND | | 4.2200 INCHES MAXIMUM | | KEYWAY RADIUS | 0.1550 INCHES MINIMUM AND | | 0.1650 INCHES MAXIMUM | | WASHER KEYWAY DEPTH | 0.3300 INCHES MINIMUM AND | | 0.3400 INCHES MAXIMUM | | KEYWAY QUANTITY | 3 | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | COUNTERBORE DIAMETER | 3.7400 INCHES MINIMUM AND | | 3.7420 INCHES MAXIMUM | | COUNTERBORE DEPTH | 0.3800 INCHES MINIMUM AND | | 0.3850 INCHES MAXIMUM | | OVERALL THICKNESS | 0.4400 INCHES MINIMUM AND | | 0.4500 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 3.5500 INCHES MINIMUM AND | | 3.5550 INCHES MAXIMUM | | SPECIAL FEATURES | NHA 4061651 FUEL GEAR PUMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 59875 | | DESIGN CONTROL REFERENCE | 217241 |
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