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National Stock Number:
3120-00-990-3972
Federal Supply Class:
3120
National Item Identification Number:
009903972
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:
| 2047926 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 513-2195540 PIE | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 71791-32X4PC3 | 96169 | ELECTRIC BOAT CORPORATION | | 845-5486677 ITE | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.6250 INCHES MINIMUM AND 0.6290 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.8660 INCHES MINIMUM AND 0.8680 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DELRIN AF TYPE 138 95696 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC ACETAL OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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