3120-00-775-2554 BEARING,WASHER,THRUST Index 3120-00-775-2560 BEARING,WASHER,THRUST

National Stock Number:
3120-00-775-2557

Federal Supply Class:
3120

National Item Identification Number:
007752557

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.


Manufacturer Information:
1893230PC1180064NAVAL SHIP SYSTEMS COMMAND
2640-047-996169ELECTRIC BOAT CORPORATION
2640-808X01PC796169ELECTRIC BOAT CORPORATION
2640-808X1 PIECE 796169ELECTRIC BOAT CORPORATION
2642-822-10-ITEM 1496169ELECTRIC BOAT CORPORATION
845-1889796PC980064NAVAL SHIP SYSTEMS COMMAND
845-4558779 ITE80064NAVAL SHIP SYSTEMS COMMAND
9800-312X1PC1196169ELECTRIC BOAT CORPORATION


Techincal Specification:
MATERIALPLASTIC POLYAMIDE OVERALL
HARDNESS RATING75.0 ROCKWELL M NOMINAL SPHERICAL SURFACE
STYLE DESIGNATORROUND
OUTSIDE DIAMETER1.2812 INCHES NOMINAL
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL THICKNESS0.1250 INCHES NOMINAL
CENTER HOLE SHAPE STYLEROUND
DIAMETER0.2812 INCHES NOMINAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE96169
DESIGN CONTROL REFERENCE2640-808X1 PIECE 7


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