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National Stock Number:
3120-00-540-7997
Federal Supply Class:
3120
National Item Identification Number:
005407997
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:
| 3120005407997 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | | 4B19B8-015 | 43999 | THE BOEING COMPANY | | 6758837 | 24617 | GENERAL MOTORS CORP | | 6758837 | 73342 | ALLISON TRANSMISSION INC | | 8348813 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 546-CANCELED OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-13501 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 60.0 ROCKWELL B NOMINAL OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 3.6200 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0920 INCHES MINIMUM AND | | 0.0940 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 2.9750 INCHES MINIMUM AND | | 2.9850 INCHES MAXIMUM | | SURFACE CONDITION | GROUND | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 73342 | | DESIGN CONTROL REFERENCE | 6758837 |
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