KSB4-4

View detailed technical data, stock status, and sourcing information for: KSB4-4
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-043-1270

Item Name Code

13208

Assigment Date

06/19/1977 (49 years ago)

2700 pounds static radial load rating, 0.2450 inches minimum and 0.2550 inches maximum outer member width, 0.3380 inches minimum and 0.3430 inches maximum inner member width, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 0.6557 inches minimum and 0.6562 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: 0.2495 inches minimum and 0.2500 inches maximum
Outer Member Outside Diameter: 0.6557 inches minimum and 0.6562 inches maximum
Outer Member Width: 0.2450 inches minimum and 0.2550 inches maximum
Inner Member Width: 0.3380 inches minimum and 0.3430 inches maximum
Static Radial Load Rating: 2700 pounds
Hardness Rating: 57.0 rockwell c minimum and 61.0 rockwell c maximum inner member
Lubrication Feature: groove internal outer member
Lubrication Feature: perforation outer race member
Material: copper alloy outer race member
Material: grease lubrication
Material: steel comp e52100 inner member
Material Document And Classification: mil-g-23827 mil spec single material response lubrication
Surface Treatment: cadmium outer race member
Surface Treatment: chromium inner member
Style Designator: without insert or liner

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
KSB4-4	Self-Aligning Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-043-1270?

The FSCG of the NSN 3120-01-043-1270 is 3120

Does the NSN 3120-01-043-1270 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-01-043-1270 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 3120-01-043-1270 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-043-1270 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 3120-01-043-1270 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sun, Jun 19, 1977