3120-00-541-9438, BEARING,WASHER,THRUST

National Stock Number:
3120-00-541-9438

Federal Supply Class:
3120

National Item Identification Number:
005419438

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:

3341114	55380	HATCH & KIRK, INC.
3341114	72915	GENERAL MOTORS CORP ELECTRO-MOTIVE DIV

Techincal Specification:

MATERIAL	COPPER ALLOY OVERALL
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	6.2500 INCHES NOMINAL
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
	SQUARE SECOND OUTSIDE CORNER
	SQUARE THIRD OUTSIDE CORNER
	SQUARE FOURTH OUTSIDE CORNER
	SQUARE FIRST INSIDE CORNER
	SQUARE SECOND INSIDE CORNER
CROSS-SECTIONAL SHAPE STYLE	SHOULDERED
FLANGE THICKNESS	0.1860 INCHES NOMINAL
OVERALL THICKNESS	1.1235 INCHES NOMINAL
SHANK OUTSIDE DIAMETER	5.6895 INCHES MINIMUM AND
	5.6915 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	5.2510 INCHES MINIMUM AND
	5.2530 INCHES MAXIMUM
SURFACE FINISH	125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
	250.0 MICROINCHES LARGEST OUTSIDE DIAMETER
	125.0 MICROINCHES LEFT SIDE
	250.0 MICROINCHES RIGHT SIDE
	125.0 MICROINCHES RIGHT SIDE OF FLANGE
	125.0 MICROINCHES SMALLEST OUTSIDE DIAMETER
LUBRICATION FEATURE	GROOVE EXTERNAL SURFACE MEMBER

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