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National Stock Number:
3120-00-540-7525
Federal Supply Class:
3120
National Item Identification Number:
005407525
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:
| 772099-1 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.8750 INCHES NOMINAL | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | SQUARE SECOND OUTSIDE CORNER | | SQUARE THIRD OUTSIDE CORNER | | SQUARE FOURTH OUTSIDE CORNER | | SQUARE FIRST INSIDE CORNER | | SQUARE SECOND INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | FLANGE THICKNESS | 0.0450 INCHES MINIMUM AND | | 0.0500 INCHES MAXIMUM | | OVERALL THICKNESS | 0.2910 INCHES MINIMUM AND | | 0.3000 INCHES MAXIMUM | | SHANK OUTSIDE DIAMETER | 1.3900 INCHES MINIMUM AND | | 1.3907 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 1.1250 INCHES MINIMUM AND | | 1.1260 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98897 | | DESIGN CONTROL REFERENCE | 772099-1 |
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