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National Stock Number:
3120-00-585-3775
Federal Supply Class:
3120
National Item Identification Number:
005853775
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:
| 335531 | 77445 | RTX CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 8740 OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 4.4900 INCHES MINIMUM AND | | 4.4940 INCHES MAXIMUM | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | SQUARE SECOND OUTSIDE CORNER | | SQUARE FIRST INSIDE CORNER | | CHAMFERED SECOND INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.4540 INCHES MINIMUM AND | | 0.4560 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 4.3163 INCHES MINIMUM AND | | 4.3180 INCHES MAXIMUM | | SURFACE FINISH | 16.0 MICROINCHES LEFT SIDE | | 16.0 MICROINCHES RIGHT SIDE | | SPECIAL FEATURES | FIRST INSIDE CORNER CHAMFERED 40.0 DEG MIN TO 50.0 DEG MAX BY 0.0200 IN. MIN TO 0.0500 IN. MAX LONG | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77445 | | DESIGN CONTROL REFERENCE | 335531 |
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