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National Stock Number:
3120-01-194-8534
Federal Supply Class:
3120
National Item Identification Number:
011948534
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:
| 161091-2 | 55820 | RTX CORPORATION |
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Techincal Specification:
| DIAMETER | 6.7300 INCHES MINIMUM AND 6.7500 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | COUNTERBORE DEPTH | 0.2495 INCHES NOMINAL | | COUNTERBORE DIAMETER | 7.0600 INCHES MINIMUM AND 7.0800 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 7.1510 INCHES MINIMUM AND 7.1760 INCHES MAXIMUM | | OVERALL THICKNESS | 0.3400 INCHES MINIMUM AND 0.3500 INCHES MAXIMUM | | SPECIAL FEATURES | SPLIT ACROSS WIDTH IN ONE PLACE | | STYLE DESIGNATOR | ROUND |
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