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National Stock Number:
3120-01-219-5457
Federal Supply Class:
3120
National Item Identification Number:
012195457
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:
| 122-2422329 PIECE 7 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 2422329 PIECE 7 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | STD-122-2422329 PIECE 7 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | STEEL INNER LAYER | | COPPER ALLOY AND | | LEAD AND | | PLASTIC POLYTETRAFLUOROETHYLENE INTERMEDIATE LAYER | | PLASTIC POLYTETRAFLUOROETHYLENE AND | | LEAD OUTER LAYER | | STYLE DESIGNATOR | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0610 INCHES MINIMUM AND | | 0.0630 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | LUBRICATION FEATURE | GROOVE AND | | PERFORATION FLAT BEARING SURFACE |
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