FB-20 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: FB-20 Self-Aligning Plain Bearing.

Summary

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

Part Number: FB-20
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-913-2456
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1960

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

groove and perforation external outer member lubrication feature, 60.0 rockwell c nominal inner member hardness rating, 57.0 rockwell c nominal outer race member hardness rating, 1.2495 inches minimum and 1.2500 inches maximum bore diameter, 1.0880 inches minimum and 1.0930 inches maximum inner member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-913-2456 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 1.2495 inches minimum and 1.2500 inches maximum
Hardness Rating: 57.0 rockwell c nominal outer race member
Hardness Rating: 60.0 rockwell c nominal inner member
Inner Member Width: 1.0880 inches minimum and 1.0930 inches maximum
Lubrication Feature: groove and perforation external outer member
Lubrication Feature: groove internal inner member
Lubrication Feature: perforation and groove external inner member
Material: steel comp e52100 inner member
Material: steel comp e52100 outer race member
Outer Member Outside Diameter: 1.9994 inches minimum and 2.0000 inches maximum
Outer Member Width: 0.9320 inches minimum and 0.9370 inches maximum
Special Features: outer member fractured one place,dry film lubricant on all surfaces
Static Radial Load Rating: 155000 pounds
Style Designator: without insert or liner

Replaces

The NSN 3120-00-913-2456 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-138-9964	No Name Available	01/12/1973
3120-00-294-0081	No Name Available	09/01/1983
3120-00-526-1850	No Name Available	04/01/1976

Frequently Asked Questions

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

What is the FSCG of the NSN 3120-00-913-2456?: The FSCG of the NSN 3120-00-913-2456 is 3120

Does the NSN 3120-00-913-2456 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-913-2456 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 3120-00-913-2456 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-913-2456 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.