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National Stock Number:
3120-00-111-7778
Federal Supply Class:
3120
National Item Identification Number:
001117778
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:
| RB21813 | 51663 | HYDRO-AIRE AEROSPACE CORP. |
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Techincal Specification:
| MATERIAL | STEEL COMP 630 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND | | 47.0 ROCKWELL C MAXIMUM OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.1250 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.1560 INCHES MINIMUM AND | | 0.1580 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND W/KEYWAY | | DIAMETER | 0.5630 INCHES MINIMUM AND | | 0.5640 INCHES MAXIMUM | | CENTER HOLE KEYWAY DEPTH | 0.0690 INCHES MINIMUM AND | | 0.0720 INCHES MAXIMUM | | CENTER HOLE KEYWAY WIDTH | 0.1270 INCHES MINIMUM AND | | 0.1290 INCHES MAXIMUM | | CENTER HOLE KEYWAY QUANTITY | 2 | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | 12.0 MICROINCHES LEFT SIDE | | 12.0 MICROINCHES RIGHT SIDE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 51663 | | DESIGN CONTROL REFERENCE | RB21813 |
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