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National Stock Number:
3120-00-159-6981
Federal Supply Class:
3120
National Item Identification Number:
001596981
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:
| 517579 | 06481 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 517579 | 13973 | LITTON SYSTEMS INC. DIV NAVIGATION SYSTEMS DIVISION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 1.5625 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM | | FLANGE THICKNESS | 0.1290 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.7500 INCHES NOMINAL | | OVERALL THICKNESS | 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM | | SHANK OUTSIDE DIAMETER | 1.6600 INCHES MINIMUM AND 1.6605 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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