KJN70-1

View detailed technical data, stock status, and sourcing information for: KJN70-1
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-089-3024

Item Name Code

13205

Assigment Date

01/01/1961 (65 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.

2.5000 inches nominal overall length, chamfered inside left corner corner shape, chamfered inside right corner corner shape, 4.3780 inches minimum and 4.3800 inches maximum body inside diameter, 4.9970 inches minimum and 4.9990 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: 2.5000 inches nominal
Body Outside Diameter: 4.9970 inches minimum and 4.9990 inches maximum
Body Inside Diameter: 4.3780 inches minimum and 4.3800 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: chamfered inside right corner
Corner Shape: round outside left corner
Corner Shape: round outside right corner
Surface Finish: 32.0 microinches outside diameter surface of body
Surface Finish: 63.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches left end surface of body
Surface Finish: 63.0 microinches right end surface of body
Material: aluminum alloy 2024 and aluminum alloy 2017 outer layer
Material: cotton inner layer
Material Document And Classification: qq-a-200/3a,t4 fed spec 1st material response and qq-a-225a,t6 fed spec 2nd material response outer layer
Surface Treatment: anodize left end surface of body
Surface Treatment: anodize outside diameter surface of body
Surface Treatment: anodize right end surface of body
Surface Treatment Document And Classification: mil-a-8625,type 1 mil spec single treatment response left end surface of body
Surface Treatment Document And Classification: mil-a-8625,type 1 mil spec single treatment response outside diameter surface of body
Surface Treatment Document And Classification: mil-a-8625,type 1 mil spec single treatment response right end surface of body
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
KJN70-1	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-089-3024?

The FSCG of the NSN 3120-00-089-3024 is 3120

Does the NSN 3120-00-089-3024 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-089-3024 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 3120-00-089-3024 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-089-3024 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 3120-00-089-3024 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961