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.

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

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.