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National Stock Number:
3120-01-300-9512
Federal Supply Class:
3120
National Item Identification Number:
013009512
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:
| 12577080 | 19200 | US ARMY ARDEC RDECOM | | 12577080 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL | | K-105 | 1511A | SOLTAM SYSTEMS LTD. | | K-105 | 2291A | ELBIT SYSTEMS C4I AND CYBER LTD | | K-105 | S3151 | SOLTAM SYSTEMS LTD. DBA SOLTAM LTD. |
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Techincal Specification:
| OVERALL THICKNESS | 5.5 MILLIMETERS NOMINAL | | SPHERICAL DEPTH | 2.5 MILLIMETERS NOMINAL | | STYLE DESIGNATOR | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | TAPERED SIDE | | HARDNESS RATING | 235.0 ROCKWELL B MINIMUM OVERALL AND 280.0 ROCKWELL B MAXIMUM OVERALL | | MATERIAL | STEEL COMP 4140 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 31.5 MILLIMETERS NOMINAL | | OUTSIDE SPHERICAL RADIUS | 0.5 MILLIMETERS NOMINAL |
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