3120-01-331-7744

Find complete technical information, availability, and procurement data for: 3120-01-331-7744
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-331-7744

Item Name Code

13209

Assigment Date

12/27/1990 (35 years ago)

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The outer member of the assembly is modified to provide a shank. The inner member may be either a plain spherical bearing or a sleeve bearing. Excludes:bearing, plain, spherical and bearing, plain, self-aligning.

left-hand thread direction, externally threaded shank style, 2.2495 inches nominal overall length, 3a thread class, 0.2495 inches minimum and 0.2515 inches maximum bore diameter

Product Characteristics

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

Thread Class: 3a
Thread Direction: left-hand
Shank Style: externally threaded
Overall Length: 2.2495 inches nominal
Bore Diameter: 0.2495 inches minimum and 0.2515 inches maximum
Outer Member Outside Diameter: 0.8650 inches minimum and 0.8850 inches maximum
Bore Center To Shank End Distance: 1.8020 inches minimum and 1.8220 inches maximum
Outer Member Width: 0.3220 inches minimum and 0.3320 inches maximum
Inner Member Width: 0.4950 inches minimum and 0.5000 inches maximum
Shank Thread Length: 1.0310 inches minimum and 1.1240 inches maximum
Thread Diameter: 0.3750 inches nominal
Thread Quantity Per Inch: 24
Material: steel corrosion resisting overall
Surface Treatment: passivate race insert
Surface Treatment: passivate rod end body
Surface Treatment: chromium inner member
Style Designator: ball type
Thread Series Designator: unf

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
BRE-4991	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-331-7744?

The FSCG of the NSN 3120-01-331-7744 is 3120

Does the NSN 3120-01-331-7744 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-331-7744 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 3120-01-331-7744 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-331-7744 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 3120-01-331-7744 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Dec 27, 1990