3120-01-009-2977 Thrust Washer Bearing

Comprehensive specifications and application details for NSN: 3120-01-009-2977.

Summary

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Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-009-2977
Item Name Code: 13211
Federal Item Identification Guide: A045A0
Assigment Date: 09/07/1975

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.

6 first bearing surface hole quantity, round second inside corner corner shape, round first outside corner corner shape, round center hole shape style, 0.2500 inches nominal first bearing surface hole diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-009-2977 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bearing Surface Hole Diameter: 0.2500 inches nominal first
Bearing Surface Hole Quantity: 6 first
Center Hole Shape Style: round
Corner Shape: round first outside corner
Corner Shape: round second inside corner
Corner Shape: round second outside corner
Corner Shape: square first inside corner
Corner Shape: square fourth inside corner
Corner Shape: square third inside corner
Counterbore Depth: 0.1500 inches nominal
Counterbore Diameter: 7.5020 inches minimum and 7.5080 inches maximum
Diameter: 6.7300 inches nominal
Outside Diameter: 0.8750 inches nominal
Overall Thickness: 0.4750 inches nominal
Material Document And Classification: qq-a-250/11,t651 fed spec single material response overall
Material: aluminum alloy 6061 overall
Special Features: enamel,mil-e-15090,ty 3,cl 1 external surface; w/6 insert screw thd ms124694
Style Designator: round
Surface Finish: 125.0 microinches largest outside diameter
Surface Finish: 125.0 microinches inside diameter surface of body
Surface Finish: 125.0 microinches left side
Surface Finish: 125.0 microinches right side
Surface Finish: 63.0 microinches counterbore diameter
Surface Treatment Document And Classification: mil-c-5541 mil spec single treatment response inside diameter surface of body
Surface Treatment: oxide film inside diameter surface of body

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
2541556	Thrust Washer Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-01-009-2977. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-009-2977?: The FSCG of the NSN 3120-01-009-2977 is 3120

Does the NSN 3120-01-009-2977 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105008

Does NSN 3120-01-009-2977 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 3120-01-009-2977 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-009-2977 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.