NSN 3120-00-498-2868

Part Details | THRUST WASHER BEARING

3120-00-498-2868 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: 912350, 11657094, 3120-00-498-2868, 00-498-2868, 3120004982868, 004982868

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31OCT 06, 196900-498-286813211 ( BEARING, WASHER, THRUST )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND W/KEYWAY

ROUND W/SQUARE KEYS

Cross Reference | NSN 3120-00-498-2868
Part Number Cage Code Manufacturer
91235034623AM GENERAL LLC
1165709419207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 3120-00-498-2868
Characteristic Specifications
STYLE DESIGNATOR ROUND W/SQUARE KEYS
KEY LENGTH0.0937 INCHES NOMINAL
OUTSIDE DIAMETER2.1250 INCHES NOMINAL
KEY WIDTH0.1875 INCHES NOMINAL
KEY QUANTITY1
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
OVERALL THICKNESS0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND W/KEYWAY
DIAMETER1.1562 INCHES NOMINAL
CENTER HOLE KEYWAY DEPTH0.1919 INCHES NOMINAL
CENTER HOLE KEYWAY WIDTH0.6250 INCHES NOMINAL
CENTER HOLE KEYWAY QUANTITY1
FEATURES PROVIDED CASEHARDENED