3120-00-139-6889 Thrust Washer Bearing

Comprehensive specifications and application details for NSN: 3120-00-139-6889.

Summary

Explore detailed summary information for bearing: 3120-00-139-6889. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-139-6889
Item Name Code: 13211
Federal Item Identification Guide: A045A0
Assigment Date: 09/01/1971

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.

0.4950 inches minimum and 0.5050 inches maximum outside diameter, square all corners corner shape, round center hole shape style, 0.2550 inches minimum and 0.2650 inches maximum diameter, rectangular cross-sectional shape style

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-139-6889 . Find dimensions, materials, tolerances, performance characteristics, etc.

Center Hole Shape Style: round
Corner Shape: square all corners
Cross-Sectional Shape Style: rectangular
Diameter: 0.2550 inches minimum and 0.2650 inches maximum
Outside Diameter: 0.4950 inches minimum and 0.5050 inches maximum
Overall Thickness: 0.0130 inches minimum and 0.0170 inches maximum
Material Document And Classification: mil-m-20693,comp a,ty 1 mil spec single material response overall
Material: plastic polyhexamethylene amide overall
Style Designator: round
Surface Condition: ground

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
1540917-001	Thrust Washer Bearing
1540917-1	Thrust Washer Bearing
15940917B1	Thrust Washer Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-00-139-6889. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-139-6889?: The FSCG of the NSN 3120-00-139-6889 is 3120

Does the NSN 3120-00-139-6889 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105008

Does NSN 3120-00-139-6889 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 3120-00-139-6889 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-139-6889 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.