MS21230-4 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: MS21230-4 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: MS21230-4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: MS21230-4
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-024-4919
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 07/12/1976

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.

lubricant lubrication material, 0.4350 inches minimum and 0.4370 inches maximum inner member width, plastic polytetrafluoroethylene race liner material, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-024-4919 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Hardness Rating: 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
Inner Member Width: 0.4350 inches minimum and 0.4370 inches maximum
Material: lubricant lubrication
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 outer race member
Outer Member Outside Diameter: 0.6245 inches minimum and 0.6250 inches maximum
Outer Member Width: 0.3220 inches minimum and 0.3320 inches maximum
Static Radial Load Rating: 9000 pounds
Style Designator: with insert and/or liner with staking groove

Replaces

The NSN 3120-01-024-4919 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-135-9689	No Name Available	01/01/1981
3120-00-276-5517	No Name Available	01/01/1986
3120-00-443-4409	No Name Available	10/01/1986
3120-00-447-3756	No Name Available	09/01/1983

Frequently Asked Questions

Find quick answers to common questions about bearing: MS21230-4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-024-4919?: The FSCG of the NSN 3120-01-024-4919 is 3120

Does the NSN 3120-01-024-4919 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-024-4919 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 3120-01-024-4919 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-024-4919 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.