3120-00-989-0028 Thrust Washer Bearing

Comprehensive specifications and application details for NSN: 3120-00-989-0028.

Summary

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Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-989-0028
Item Name Code: 13211
Federal Item Identification Guide: A045A0
Assigment Date: 11/02/1966

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.

round center hole shape style, chamfered first outside corner corner shape, 18 first bearing surface hole quantity, chamfered second outside corner corner shape, 0.1285 inches nominal first bearing surface hole diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-989-0028 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bearing Surface Hole Diameter: 0.1285 inches nominal first
Bearing Surface Hole Quantity: 18 first
Center Hole Shape Style: round
Corner Shape: chamfered second outside corner
Corner Shape: chamfered first outside corner
Corner Shape: square first inside corner
Corner Shape: square second inside corner
Counterbore Depth: 0.0910 inches nominal
Counterbore Diameter: 19.3750 inches nominal
Cross-Sectional Shape Style: counterbored
Diameter: 18.5620 inches nominal
Outside Diameter: 20.2500 inches nominal
Overall Thickness: 0.2460 inches minimum and 0.2480 inches maximum
Material Document And Classification: 6435-20089-100,78286 aghe mfr ref single material response overall
Material: copper alloy overall
Material: oil lubricating lubrication
Style Designator: round
Surface Condition: ground
Surface Finish: 100.0 microinches overall

Related Bearings

Explore the various bearing models associated with this NSN. Click on any bearing below to view detailed technical data, performance ratings, and application guidelines.

Part Number	Name
6435-20089-100	Thrust Washer Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-00-989-0028. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-989-0028?: The FSCG of the NSN 3120-00-989-0028 is 3120

Does the NSN 3120-00-989-0028 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105008

Does NSN 3120-00-989-0028 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3120-00-989-0028 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-989-0028 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.