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National Stock Number:
3120-00-529-8726
Federal Supply Class:
3120
National Item Identification Number:
005298726
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:
| 3291894PC254 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED FIRST INSIDE CORNER | | CORNER SHAPE | CHAMFERED SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.7510 INCHES MINIMUM AND 1.7520 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.4275 INCHES MINIMUM AND 2.4475 INCHES MAXIMUM | | OVERALL THICKNESS | 0.3025 INCHES MINIMUM AND 0.3225 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SPECIAL FEATURES | FIRST INSIDE CORNER CHAMFERED 0.062 IN. BY 45 DEG | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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