201-4684478 ITEM 20

Comprehensive specifications and application details for: 201-4684478 ITEM 20 Thrust Washer Bearing.

Summary

Explore detailed summary information for bearing: 201-4684478 ITEM 20. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
201-4684478 ITEM 20
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-144-6304
Item Name Code
13211
Federal Item Identification Guide
A045A0
Assigment Date
12/27/1982

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.

rectangular cross-sectional shape style, 10.2450 inches nominal outside diameter, round center hole shape style, 6.7500 inches nominal diameter, 0.3750 inches nominal overall thickness

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-144-6304 . Find dimensions, materials, tolerances, performance characteristics, etc.

Center Hole Shape Style
round
Cross-Sectional Shape Style
rectangular
Diameter
6.7500 inches nominal
Outside Diameter
10.2450 inches nominal
Overall Thickness
0.3750 inches nominal
Special Features
six grooves equally spaced on each side; twelve intersecting grooves on the od surface
Style Designator
round
Surface Finish
32.0 microinches left side
Surface Finish
32.0 microinches right side

Frequently Asked Questions

Find quick answers to common questions about bearing: 201-4684478 ITEM 20. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-144-6304?
The FSCG of the NSN 3120-01-144-6304 is 3120
Does the NSN 3120-01-144-6304 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105008
Does NSN 3120-01-144-6304 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 3120-01-144-6304 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-144-6304 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.
When the NSN 3120-01-144-6304 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Mon, Dec 27, 1982

Price & Availability

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