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National Stock Number:
3120-01-076-3246
Federal Supply Class:
3120
National Item Identification Number:
010763246
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:
| 4674804 ITEM 15 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 518-4674804 ITE | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 518-4674804ITEM15 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 87625-0306ITEM15 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 8.4800 INCHES MINIMUM AND | | 8.4900 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.3125 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 7.5030 INCHES MINIMUM AND | | 7.5050 INCHES MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | LUBRICATION MATERIAL | LUBRICANT, MANUFACTURERS STANDARD |
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