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National Stock Number:
3120-01-129-0733
Federal Supply Class:
3120
National Item Identification Number:
011290733
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:
| 4674704-0016 | 96169 | ELECTRIC BOAT CORPORATION | | 520-4674704 ITEM 16 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 87611-1418 ITEM 16 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| DIAMETER | 3.1200 INCHES NOMINAL | | OUTSIDE DIAMETER | 4.3380 INCHES MINIMUM AND 4.3480 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1250 INCHES NOMINAL | | SPECIAL FEATURES | FOUR GROOVES EQUALLY SPACED ON EACH SIDE |
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