3120-00-451-9838 Self-Aligning Plain Bearing

Comprehensive specifications and application details for NSN: 3120-00-451-9838.

Summary

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Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-451-9838
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 02/23/1972

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.

0.5620 inches minimum and 0.5625 inches maximum bore diameter, 0.6850 inches minimum and 0.6870 inches maximum inner member width, 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member hardness rating, steel comp 440c inner member material, 23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member hardness rating

Datasheet

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Bore Diameter: 0.5620 inches minimum and 0.5625 inches maximum
Hardness Rating: 55.0 rockwell c minimum and 62.0 rockwell c maximum inner member
Hardness Rating: 23.0 rockwell c minimum and 35.0 rockwell c maximum outer race member
Inner Member Width: 0.6850 inches minimum and 0.6870 inches maximum
Material: steel comp 440c inner member
Material: steel comp 630 or steel comp 631 or steel comp 410 outer race member
Outer Member Outside Diameter: 1.1245 inches minimum and 1.1250 inches maximum
Outer Member Width: 0.5310 inches minimum and 0.5410 inches maximum
Static Radial Load Rating: 34400 pounds
Style Designator: with insert and/or liner

Related Bearings

Explore the various bearing models associated with this NSN. Click on any bearing below to view detailed technical data, performance ratings, and application guidelines.

Part Number	Name
MS21231-9	Self-Aligning Plain Bearing

Frequently Asked Questions

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What is the FSCG of the NSN 3120-00-451-9838?: The FSCG of the NSN 3120-00-451-9838 is 3120

Does the NSN 3120-00-451-9838 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-451-9838 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 3120-00-451-9838 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-451-9838 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.