3120-00-189-6677, BEARING,WASHER,THRUST

3120-00-189-6678 ROLLER,LINEAR-ROTARY MOTION

National Stock Number:
3120-00-189-6677

Federal Supply Class:
3120

National Item Identification Number:
001896677

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:

1936477-1

55972

HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS

Techincal Specification:

MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	38.0 ROCKWELL C NOMINAL OVERALL
SURFACE TREATMENT	CHROMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-C-320 FED SPEC ALL TREATMENT RESPONSES OVERALL
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	1.3750 INCHES MINIMUM AND
	1.3850 INCHES MAXIMUM
CORNER SHAPE	SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE	SHOULDERED
COUNTERBORE DIAMETER	0.9320 INCHES MINIMUM AND
	0.9420 INCHES MAXIMUM
COUNTERBORE DEPTH	0.0140 INCHES MINIMUM AND
	0.0160 INCHES MAXIMUM
FLANGE THICKNESS	0.0360 INCHES MINIMUM AND
	0.0380 INCHES MAXIMUM
OVERALL THICKNESS	0.0610 INCHES MINIMUM AND
	0.0630 INCHES MAXIMUM
SHANK OUTSIDE DIAMETER	1.2450 INCHES MINIMUM AND
	1.2550 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	0.5620 INCHES MINIMUM AND
	0.5770 INCHES MAXIMUM
SURFACE FINISH	3.0 MICROINCHES LEFT SIDE
SPECIAL FEATURES	BEARING SURFACES SHALL NOT CONTAIN SCRATCHES OR OTHER IMPERFECTIONS
BEARING SURFACE HOLE QUANTITY	2 FIRST
THE MANUFACTURERS DATA
MANUFACTURERS CODE	55972
DESIGN CONTROL REFERENCE	1936477-1

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