3120-00-104-9001, BEARING,WASHER,THRUST

National Stock Number:
3120-00-104-9001

Federal Supply Class:
3120

National Item Identification Number:
001049001

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:

SS4093DU18	78286	SIKORSKY AIRCRAFT CORPORATION
SS4093G18DU	78286	SIKORSKY AIRCRAFT CORPORATION
SS4093G18DU	26124	GGB LLC

Techincal Specification:

	0.0630 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	1.2500 INCHES MINIMUM AND
	1.2600 INCHES MAXIMUM
SURFACE CONDITION	GROUND
SPECIFICATION/STANDARD DATA	78286-SS4093 MANUFACTURERS STANDARD
BEARING SURFACE HOLE QUANTITY	1 FIRST
BEARING SURFACE HOLE DIAMETER	0.0610 INCHES MINIMUM AND
	0.1710 INCHES MAXIMUM FIRST
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	78286
MFR SOURCE CONTROLLING REFERENCE	SS4093G18DU
MATERIAL	STEEL INNER LAYER
	COPPER ALLOY INTERMEDIATE LAYER
	PLASTIC OUTER LAYER
MATERIAL DOCUMENT AND CLASSIFICATION	78286SS4093 MFR REF ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM LEFT SIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES LEFT SIDE
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	2.1150 INCHES MINIMUM AND
	2.1250 INCHES MAXIMUM
CORNER SHAPE	SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
OVERALL THICKNESS	0.0610 INCHES MINIMUM AND

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