3120-01-238-0705, BEARING,WASHER,THRUST

National Stock Number:
3120-01-238-0705

Federal Supply Class:
3120

National Item Identification Number:
012380705

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:

T41836

75160

DEERE & CO

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	25.50 MILLIMETERS MINIMUM AND
	25.71 MILLIMETERS MAXIMUM
SURFACE FINISH	20.0 MICROINCHES LEFT SIDE
	20.0 MICROINCHES RIGHT SIDE
MATERIAL	STEEL COMP 1018 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	56.0 ROCKWELL C MINIMUM AND
	62.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	37.0 MILLIMETERS MINIMUM AND
	37.6 MILLIMETERS MAXIMUM
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
	SQUARE SECOND OUTSIDE CORNER
	CHAMFERED FIRST INSIDE CORNER
	CHAMFERED SECOND INSIDE CORNER
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
OVERALL THICKNESS	3.12 MILLIMETERS MINIMUM AND
	3.20 MILLIMETERS MAXIMUM

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