3120-00-719-4334, BEARING,WASHER,THRUST

National Stock Number:
3120-00-719-4334

Federal Supply Class:
3120

National Item Identification Number:
007194334

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:

547973	60380	TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT
547973	73030	HAMILTON SUNDSTRAND CORPORATION

Techincal Specification:

MATERIAL	STEEL COMP E52100 OVERALL
HARDNESS RATING	60.0 ROCKWELL C MINIMUM AND
	65.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	1.7400 INCHES NOMINAL
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
	SQUARE SECOND OUTSIDE CORNER
	SQUARE FIRST INSIDE CORNER
	SQUARE SECOND INSIDE CORNER
	SQUARE THIRD INSIDE CORNER
	SQUARE FOURTH INSIDE CORNER
CROSS-SECTIONAL SHAPE STYLE	COUNTERBORED
COUNTERBORE DIAMETER	1.1250 INCHES MINIMUM AND
	1.1350 INCHES MAXIMUM
COUNTERBORE DEPTH	0.0780 INCHES MINIMUM AND
	0.0870 INCHES MAXIMUM
OVERALL THICKNESS	0.1260 INCHES MINIMUM AND
	0.1280 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	1.0400 INCHES MINIMUM AND
	1.0450 INCHES MAXIMUM
SURFACE FINISH	20.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
	30.0 MICROINCHES LEFT SIDE
	30.0 MICROINCHES RIGHT SIDE
THE MANUFACTURERS DATA
MANUFACTURERS CODE	73030
DESIGN CONTROL REFERENCE	547973

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