NSN 3120-01-280-8061

Part Details | THRUST WASHER BEARING

3120-01-280-8061 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.

Alternate Parts: 259507 ITEM 9, 255221 PIECE 4, 3120-01-280-8061, 01-280-8061, 3120012808061, 012808061

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JUN 13, 198801-280-806113211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 3120-01-280-8061
Part Number Cage Code Manufacturer
259507 ITEM 943689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
255221 PIECE 443689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
Technical Data | NSN 3120-01-280-8061
Characteristic Specifications
STYLE DESIGNATOR ROUND
OUTSIDE DIAMETER5.3700 INCHES MINIMUM AND 5.3720 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.3125 INCHES NOMINAL
CENTER HOLE SHAPE STYLE ROUND
DIAMETER4.3750 INCHES NOMINAL