3120-00-787-4257, BEARING,WASHER,THRUST

National Stock Number:
3120-00-787-4257

Federal Supply Class:
3120

National Item Identification Number:
007874257

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:

204-040-134-005	97499	BELL TEXTRON INC
204-040-134-5	97499	BELL TEXTRON INC

Techincal Specification:

MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	41.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENT	OXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	204-040-134-5,97499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATOR	ROUND
OUTSIDE DIAMETER	2.0400 INCHES MINIMUM AND
	2.0600 INCHES MAXIMUM
CORNER SHAPE	SQUARE FIRST OUTSIDE CORNER
	CHAMFERED SECOND OUTSIDE CORNER
	SQUARE FIRST INSIDE CORNER
	SQUARE SECOND INSIDE CORNER
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
OVERALL THICKNESS	0.1265 INCHES MINIMUM AND
	0.1270 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE	ROUND
DIAMETER	1.3750 INCHES MINIMUM AND
	1.3755 INCHES MAXIMUM
SURFACE CONDITION	GROUND
SURFACE FINISH	32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
	63.0 MICROINCHES LARGEST OUTSIDE DIAMETER
	5.0 MICROINCHES LEFT SIDE
	32.0 MICROINCHES RIGHT SIDE
FEATURES PROVIDED	CASEHARDENED
TEST DATA DOCUMENT	81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND
	97499- BPS4075 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THE MANUFACTURERS DATA
MANUFACTURERS CODE	97499
DESIGN CONTROL REFERENCE	204-040-134-5

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