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.

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

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.