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National Stock Number:
3120-01-321-4151
Federal Supply Class:
3120
National Item Identification Number:
013214151
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:
| 42420-352 | 00462 | GOODRICH CORPORATION DBA TRW LUCAS AEROSPACE | | 42420-352 | 3HRL4 | HORNET ACQUISITIONCO, LLC | | 42420-352 | 82402 | TRIUMPH GEAR SYSTEMS INC |
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Techincal Specification:
| DIAMETER | 0.2520 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | COUNTERBORE DEPTH | 0.0370 INCHES NOMINAL | | COUNTERBORE DIAMETER | 0.3900 INCHES MINIMUM AND 0.4000 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL AND GLASS FIBER OVERALL AND DISULFIDE MOLYBDENUM OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 0.6220 INCHES MINIMUM AND 0.6230 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1500 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND |
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