18631-1

View detailed technical data, stock status, and sourcing information for: 18631-1
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-517-9023

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

0.4020 inches minimum and 0.4120 inches maximum flange outside diameter, 0.2150 inches minimum and 0.2170 inches maximum overall length, 0.2000 inches minimum and 0.2050 inches maximum body inside diameter, 0.0300 inches minimum and 0.0500 inches maximum flange width, 0.2650 inches minimum and 0.2850 inches maximum body outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 0.2150 inches minimum and 0.2170 inches maximum
Body Outside Diameter: 0.2650 inches minimum and 0.2850 inches maximum
Body Inside Diameter: 0.2000 inches minimum and 0.2050 inches maximum
Flange Outside Diameter: 0.4020 inches minimum and 0.4120 inches maximum
Flange Width: 0.0300 inches minimum and 0.0500 inches maximum
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Hardness Rating: 27.0 rockwell c nominal overall
Surface Finish: 100.0 microinches outside diameter surface of body
Surface Finish: 100.0 microinches outside diameter surface of flange
Surface Finish: 100.0 microinches right end surface of left flange
Surface Finish: 40.0 microinches inside diameter surface of body
Surface Finish: 40.0 microinches left end surface of body and flange
Surface Finish: 40.0 microinches right end surface of body
Material: steel comp 4130 overall
Style Designator: solid, external flange one end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
18631-1	Sleeve Bearing
4449	Sleeve Bearing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3120-00-517-9023?

The FSCG of the NSN 3120-00-517-9023 is 3120

Does the NSN 3120-00-517-9023 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-517-9023 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 3120-00-517-9023 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-517-9023 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.

When the NSN 3120-00-517-9023 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963