3120-00-287-7778

Find complete technical information, availability, and procurement data for: 3120-00-287-7778
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-287-7778

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

3.4900 inches minimum and 3.5100 inches maximum flange outside diameter, 0.2500 inches nominal flange width, 2.5010 inches minimum and 2.5030 inches maximum body outside diameter, 2.0080 inches minimum and 2.0100 inches maximum body inside diameter, 2.0000 inches minimum and 2.0020 inches maximum overall length

Product Characteristics

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

Overall Length: 2.0000 inches minimum and 2.0020 inches maximum
Body Outside Diameter: 2.5010 inches minimum and 2.5030 inches maximum
Body Inside Diameter: 2.0080 inches minimum and 2.0100 inches maximum
Flange Outside Diameter: 3.4900 inches minimum and 3.5100 inches maximum
Flange Width: 0.2500 inches nominal
Lubricant Accommodation Style: grooved open both ends
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
Surface Groove Location And Quantity: 4 internal
Material: copper alloy 932 overall
Material Document And Classification: mil-b-16261 mil spec single material response 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
A320-3968	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-287-7778?

The FSCG of the NSN 3120-00-287-7778 is 3120

Does the NSN 3120-00-287-7778 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-287-7778 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 3120-00-287-7778 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-287-7778 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 3120-00-287-7778 was assigned to the Federal Catalog?

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