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National Stock Number:
3120-01-495-7041
Federal Supply Class:
3120
National Item Identification Number:
014957041
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:
| 581-6985420 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 581-6985420-12 | 53711 | NAVAL SEA SYSTEMS COMMAND | | H611-1404-12 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| DIAMETER | 10.0000 INCHES MINIMUM AND 10.2800 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-24480 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 958 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RING BEARING | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 18.3800 INCHES MINIMUM AND 18.7800 INCHES MAXIMUM | | OVERALL THICKNESS | 1.0000 INCHES NOMINAL | | SPECIAL FEATURES | 2 X 0.50" GREASE GROOVES, 8 X 0.25" GREASED GROOVES AND 2 X 0.375-16UNC-3B | | STYLE DESIGNATOR | ROUND |
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