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National Stock Number:
3120-01-361-5540
Federal Supply Class:
3120
National Item Identification Number:
013615540
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:
| 180854-3 | 71791 | CURTISS-WRIGHT CONTROLS, INC. |
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Techincal Specification:
| DIAMETER | 1.2000 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | COUNTERBORE DEPTH | 0.0640 INCHES NOMINAL | | COUNTERBORE DIAMETER | 1.4000 INCHES MINIMUM AND 1.4100 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 42.0 ROCKWELL C MAXIMUM OVERALL | | LUBRICATION FEATURE | GROOVE LARGEST OUTSIDE DIAMETER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4650 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 172 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 1.4990 INCHES MINIMUM AND 1.4995 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0980 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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