3120-00-520-8958

Find complete technical information, availability, and procurement data for: 3120-00-520-8958
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-520-8958

Item Name Code

13206

Assigment Date

01/01/1963 (63 years ago)

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

3.7500 inches minimum and 3.7512 inches maximum body inside diameter, 4.2500 inches nominal flange outside diameter, 3.9398 inches minimum and 3.9410 inches maximum body outside diameter, 0.1570 inches minimum and 0.1600 inches maximum flange width, 0.9855 inches minimum and 0.9860 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: 0.9855 inches minimum and 0.9860 inches maximum
Body Outside Diameter: 3.9398 inches minimum and 3.9410 inches maximum
Body Inside Diameter: 3.7500 inches minimum and 3.7512 inches maximum
Flange Outside Diameter: 4.2500 inches nominal
Flange Width: 0.1570 inches minimum and 0.1600 inches maximum
Corner Shape: chamfered inside left corner
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 right corner
Corner Shape: square outside right corner
Surface Finish: 100.0 microinches intermediate layer
Material: copper alloy overall
Material Document And Classification: qq-c-390 fed 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
175187-2	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-520-8958?

The FSCG of the NSN 3120-00-520-8958 is 3120

Does the NSN 3120-00-520-8958 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-520-8958 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 3120-00-520-8958 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-520-8958 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 3120-00-520-8958 was assigned to the Federal Catalog?

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