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National Stock Number:
3120-00-172-9524
Federal Supply Class:
3120
National Item Identification Number:
001729524
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:
| 180854-1 | 71791 | CURTISS-WRIGHT CONTROLS, INC. | | 180854-2 | 71791 | CURTISS-WRIGHT CONTROLS, INC. |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OR | | IRON COMP B OR | | IRON COMP A1 OR | | IRON COMP A2 OR | | IRON COMP A3 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-5687,TY 1,COMP A MIL SPEC ALL MATERIAL RESPONSES OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.5015 INCHES MINIMUM AND | | 1.5025 INCHES MAXIMUM | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | SQUARE SECOND OUTSIDE CORNER | | SQUARE FIRST INSIDE CORNER | | SQUARE SECOND INSIDE CORNER | | SQUARE THIRD INSIDE CORNER | | SQUARE FOURTH INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | COUNTERBORE DIAMETER | 1.4000 INCHES MINIMUM AND | | 1.4100 INCHES MAXIMUM | | COUNTERBORE DEPTH | 0.0600 INCHES MINIMUM AND | | 0.0700 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1600 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 1.2000 INCHES NOMINAL | | LUBRICATION MATERIAL | LUBRICATING OIL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 71791 | | DESIGN CONTROL REFERENCE | 180854-2 |
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