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National Stock Number:
3120-01-269-3471
Federal Supply Class:
3120
National Item Identification Number:
012693471
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:
| 183032-3 | 71791 | CURTISS-WRIGHT CONTROLS, INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 1.1400 INCHES NOMINAL | | FLANGE THICKNESS | 0.0450 INCHES MINIMUM AND 0.0490 INCHES MAXIMUM | | HARDNESS RATING | 53.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL | | KEY LENGTH | 0.1380 INCHES MINIMUM AND 0.1450 INCHES MAXIMUM | | KEY QUANTITY | 53 | | KEY WIDTH | 0.0792 INCHES MINIMUM AND 0.0808 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.9350 INCHES MINIMUM AND 1.9450 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1080 INCHES MINIMUM AND 0.1120 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4340 OVERALL | | SHANK OUTSIDE DIAMETER | 1.7420 INCHES MINIMUM AND 1.7520 INCHES MAXIMUM | | SPECIAL FEATURES | ID COUNTERBORED 1.68 BY 0.02 DEEP; USED ON F-16 | | STYLE DESIGNATOR | ROUND W/SQUARE KEYS | | SURFACE TREATMENT | CADMIUM OVERALL |
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