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National Stock Number:
3120-01-075-7220
Federal Supply Class:
3120
National Item Identification Number:
010757220
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:
| 00004 STYLE 111 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA | | 255751PC19 | 43689 | HUNTINGTON INGALLS INC | | 255753PC19 | 43689 | HUNTINGTON INGALLS INC | | 2640-405X3 PC9 | 96169 | ELECTRIC BOAT CORPORATION | | 845-2050967 PC9 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | PLASTIC OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 0.8690 INCHES MINIMUM AND | | 0.8740 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0610 INCHES MINIMUM AND | | 0.0630 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.6250 INCHES MINIMUM AND | | 0.6290 INCHES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES OVERALL | | LUBRICATION MATERIAL | LUBRICANT, MANUFACTURERS STANDARD |
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