3120-00-310-3852, BEARING,WASHER,THRUST

National Stock Number:
3120-00-310-3852

Federal Supply Class:
3120

National Item Identification Number:
003103852

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:

S749C200	14351	TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV TELEDYNE INDUSTRIES INC SUB OF TELEDYNE INC
S749C200	18990	EAGLE CRUSHER CO INC

Techincal Specification:

BEARING SURFACE HOLE DIAMETER	0.1875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED
BEARING SURFACE HOLE QUANTITY	3 LOCATION NOT OTHERWISE SPECIFIED
CENTER HOLE SHAPE STYLE	ROUND
CORNER SHAPE	SQUARE FIRST INSIDE CORNER
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
CORNER SHAPE	SQUARE FOURTH INSIDE CORNER
CORNER SHAPE	SQUARE SECOND INSIDE CORNER
CORNER SHAPE	SQUARE SECOND OUTSIDE CORNER
CORNER SHAPE	SQUARE THIRD INSIDE CORNER
COUNTERBORE DEPTH	0.0780 INCHES NOMINAL
COUNTERBORE DIAMETER	3.8120 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE	COUNTERBORED
DIAMETER	3.3120 INCHES NOMINAL
OUTSIDE DIAMETER	4.7500 INCHES NOMINAL
OVERALL THICKNESS	0.3560 INCHES MINIMUM AND 0.3620 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY 937 OVERALL
STYLE DESIGNATOR	ROUND

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