3120-01-181-4135, BEARING,WASHER,THRUST

National Stock Number:
3120-01-181-4135

Federal Supply Class:
3120

National Item Identification Number:
011814135

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:

217128

59875

EATON CORP

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CORNER SHAPE	CHAMFERED SECOND OUTSIDE CORNER
CORNER SHAPE	SQUARE FIRST INSIDE CORNER
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
CORNER SHAPE	SQUARE FOURTH OUTSIDE CORNER
CORNER SHAPE	SQUARE SECOND INSIDE CORNER
CORNER SHAPE	SQUARE THIRD OUTSIDE CORNER
CROSS-SECTIONAL SHAPE STYLE	SHOULDERED
DIAMETER	1.0400 INCHES MINIMUM AND 1.0500 INCHES MAXIMUM
FLANGE THICKNESS	0.2580 INCHES NOMINAL
LUBRICATION FEATURE	GROOVE AND PERFORATION LEFT SIDE
OUTSIDE DIAMETER	2.1000 INCHES MINIMUM AND 2.1005 INCHES MAXIMUM
OVERALL THICKNESS	0.3230 INCHES MINIMUM AND 0.3330 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	59875,TAP-MS-285 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY OVERALL
SPECIAL FEATURES	6 HOLES 0.06 IN. DIA EQ SP ON 1.93 IN. BC;6 SLOTS 0.06 IN. W 0.083 IN. DEEP CONNECT HOLES TO 1.19 IN DIA GROOVE ON RIGHT SIDE
SHANK OUTSIDE DIAMETER	1.82025 INCHES NOMINAL
STYLE DESIGNATOR	ROUND
SURFACE FINISH	32.0 MICROINCHES RIGHT SIDE

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