MS21231-5 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: MS21231-5 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: MS21231-5. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: MS21231-5
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-079-9974
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 12/13/1967

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.

0.3120 inches minimum and 0.3125 inches maximum bore diameter, 0.4350 inches minimum and 0.4370 inches maximum inner member width, steel comp 440c inner member material, 55.0 rockwell c minimum inner member hardness rating, 23.0 rockwell c minimum outer race member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-079-9974 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.3120 inches minimum and 0.3125 inches maximum
Hardness Rating: 55.0 rockwell c minimum inner member
Hardness Rating: 23.0 rockwell c minimum outer race member
Inner Member Width: 0.4350 inches minimum and 0.4370 inches maximum
Material: steel comp 440c inner member
Material: steel outer race member
Outer Member Outside Diameter: 0.6870 inches minimum and 0.6875 inches maximum
Outer Member Width: 0.3120 inches minimum and 0.3220 inches maximum
Static Radial Load Rating: 9400 pounds
Style Designator: without insert or liner

Frequently Asked Questions

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What is the FSCG of the NSN 3120-00-079-9974?: The FSCG of the NSN 3120-00-079-9974 is 3120

Does the NSN 3120-00-079-9974 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-079-9974 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 3120-00-079-9974 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-079-9974 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.