3120-00-127-3959

Find complete technical information, availability, and procurement data for: 3120-00-127-3959
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-127-3959

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.

1.6250 inches minimum and 1.6260 inches maximum body inside diameter, 4.1250 inches nominal overall length, 2.2490 inches minimum and 2.2500 inches maximum body outside diameter, 0.3750 inches nominal first hole diameter, 4.2540 inches minimum and 4.2550 inches maximum flange outside diameter

Product Characteristics

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

Hole Diameter: 0.3750 inches nominal first
Overall Length: 4.1250 inches nominal
Body Outside Diameter: 2.2490 inches minimum and 2.2500 inches maximum
Body Inside Diameter: 1.6250 inches minimum and 1.6260 inches maximum
Flange Outside Diameter: 4.2540 inches minimum and 4.2550 inches maximum
Flange Width: 0.6240 inches minimum and 0.6250 inches maximum
Lubricant Accommodation Style: grooved open one end
Corner Shape: chamfered inside left corner
Corner Shape: undercut outside right corner
Surface Finish: 125.0 microinches inside diameter surface of body
Surface Finish: 32.0 microinches left end surface of body and flange
Surface Finish: 32.0 microinches outside diameter surface of body
Surface Finish: 32.0 microinches right end surface of left flange
Surface Finish: 32.0 microinches right end surface of body
Antirotation/Lubrication Type And Quantity: 1 hole
Surface Groove Location And Quantity: 1 internal
Special Features: hole centered 1.1875 in. from left end,at end of groove
Material: steel overall
Material Document And Classification: mil-s-890 cl ac 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:

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FAQs

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

What is the FSCG of the NSN 3120-00-127-3959?

The FSCG of the NSN 3120-00-127-3959 is 3120

Does the NSN 3120-00-127-3959 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-127-3959 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 3120-00-127-3959 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-127-3959 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 3120-00-127-3959 was assigned to the Federal Catalog?

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