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National Stock Number:
3120-01-077-1987
Federal Supply Class:
3120
National Item Identification Number:
010771987
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:
| 4674154 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 508-4674154 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 508-4674154 PC 13 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 87553-2003 ITEM 13 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| MATERIAL | PLASTIC OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.7200 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0930 INCHES MINIMUM AND | | 0.0960 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 1.2800 INCHES NOMINAL | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | 32.0 MICROINCHES LEFT SIDE | | 32.0 MICROINCHES RIGHT SIDE | | LUBRICATION MATERIAL | LUBRICANT, MANUFACTURERS STANDARD |
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