3120-00-389-8158

Find complete technical information, availability, and procurement data for: 3120-00-389-8158
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-389-8158

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes:shaft(1), straight; and axle(1), straight.

1.0000 inches nominal body outside diameter, 3.1200 inches minimum and 3.1250 inches maximum overall length, chamfered all corners corner shape, abhp and adas criticality code justification, 0.6870 inches minimum and 0.6920 inches maximum body inside 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: 3.1200 inches minimum and 3.1250 inches maximum
Body Outside Diameter: 1.0000 inches nominal
Body Inside Diameter: 0.6870 inches minimum and 0.6920 inches maximum
Corner Shape: chamfered all corners
Criticality Code Justification: abhp and adas
Surface Finish: 125.0 microinches inside diameter surface of body
Material: steel comp 1010 or steel comp 1020 overall
Surface Treatment: cadmium or zinc overall
Style Designator: solid, plain, no outside flanges

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
7345821	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-389-8158?

The FSCG of the NSN 3120-00-389-8158 is 3120

Does the NSN 3120-00-389-8158 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-389-8158 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 3120-00-389-8158 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-389-8158 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 3120-00-389-8158 was assigned to the Federal Catalog?

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