NSN 3120-01-259-3706

Part Details | THRUST WASHER BEARING

3120-01-259-3706 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.

Alternate Parts: 68A4526252001, 68A452625-2001, 3120-01-259-3706, 01-259-3706, 3120012593706, 012593706

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JUL 17, 198701-259-370613211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

ROUND

ROUND

Cross Reference | NSN 3120-01-259-3706
Part Number Cage Code Manufacturer
68A452625-200176301BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 3120-01-259-3706
Characteristic Specifications
STYLE DESIGNATOR ROUND
OUTSIDE DIAMETER3.2350 INCHES MINIMUM AND 3.2450 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE SHOULDERED
FLANGE THICKNESS0.2190 INCHES MINIMUM AND 0.2210 INCHES MAXIMUM
OVERALL THICKNESS0.2730 INCHES MINIMUM AND 0.2830 INCHES MAXIMUM
SHANK OUTSIDE DIAMETER2.4970 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
DIAMETER2.1180 INCHES MINIMUM AND 2.1200 INCHES MAXIMUM
TEST DATA DOCUMENT76301-PS21201 CLSS B 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.).