4M71A6

View detailed technical data, stock status, and sourcing information for: 4M71A6
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-340-5191

Item Name Code

13208

Assigment Date

01/09/1974 (52 years ago)

0.3745 inches minimum and 0.3750 inches maximum bore diameter, perforation outer race member lubrication feature, 0.4010 inches minimum and 0.4060 inches maximum inner member width, 0.3070 inches minimum and 0.3170 inches maximum outer member width, 0.8120 inches minimum and 0.8125 inches maximum outer member outside diameter

Product Characteristics

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

Bore Diameter: 0.3745 inches minimum and 0.3750 inches maximum
Outer Member Outside Diameter: 0.8120 inches minimum and 0.8125 inches maximum
Outer Member Width: 0.3070 inches minimum and 0.3170 inches maximum
Inner Member Width: 0.4010 inches minimum and 0.4060 inches maximum
Lubrication Feature: perforation outer race member
Material: copper alloy 824 outer race member
Material: steel comp e52100 inner member
Surface Treatment: cadmium outer race member
Surface Treatment: chromium inner member
Style Designator: without insert or liner
Test Data Document: "81349-mil-i-6866 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

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
4M71A6	Self-Aligning Plain Bearing
BLN6003C	Self-Aligning Plain Bearing
KSB6-4	Self-Aligning Plain Bearing
PR6C	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-340-5191?

The FSCG of the NSN 3120-00-340-5191 is 3120

Does the NSN 3120-00-340-5191 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-00-340-5191 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 3120-00-340-5191 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-340-5191 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 3120-00-340-5191 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Wed, Jan 9, 1974