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National Stock Number:
3120-01-505-1715
Federal Supply Class:
3120
National Item Identification Number:
015051715
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:
| 596-7409224 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 596-7409224-11 | 53711 | NAVAL SEA SYSTEMS COMMAND | | B434-2410-11 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| DIAMETER | 2.9400 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | ROUND SECOND OUTSIDE CORNER | | CORNER SHAPE | SQUARE FOURTH INSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE THIRD INSIDE CORNER | | COUNTERBORE DEPTH | 0.1200 INCHES NOMINAL | | COUNTERBORE DIAMETER | 3.3910 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-21952 GR-HY-80, TY-B MIL SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 3.7370 INCHES NOMINAL | | OVERALL THICKNESS | 0.4400 INCHES NOMINAL | | SPECIAL FEATURES | EXPORT CONTROL DWG NOT TO BE RELEASED OUTSIDE USA | | STYLE DESIGNATOR | ROUND |
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