Product Details | THRUST WASHER BEARING

3120-01-552-0979 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.

Part Alternates: 228KD236AP230, 228KD236A-P230, 3120-01-552-0979, 01-552-0979, 3120015520979, 015520979

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 05 JUN 2007 01-552-0979

Drawings & Photos | NSN 3120-01-552-0979


Cross Reference | NSN 3120-01-552-0979

Part Number Cage Code Manufacturer
228KD236A-P230 89619 MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS
228KD236A-P230 Z4117 VOLVO GROUP AUSTRALIA PTY LTD

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Technical Data | NSN 3120-01-552-0979

Characteristic Specifications
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE J403 NO. 1074 ASSN STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATOR 23 ROUND
OUTSIDE DIAMETER 2.8590 INCHES MINIMUM AND 2.8910 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE 35 RECTANGULAR
OVERALL THICKNESS 0.2290 INCHES MINIMUM AND 0.2310 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 55 ROUND W/KEYWAYS
MINOR DIAMETER 1.8900 INCHES MINIMUM AND 1.9000 INCHES MAXIMUM
SPECIAL FEATURES PART NO. RUBBER STAMPED ON PART; PART HAS 4 SETS OF 3 TEETH EQUALLY SPACED ON INNER DIAMETER OF BEARING
III PART NAME ASSIGNED BY CONTROLLING AGENCY WASHER, THRUST M. S. 4TH SPEED (SELECTIVE)

Restrictions/Controls & Freight Information | NSN 3120-01-552-0979

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information