KSB4-4 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: KSB4-4 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: KSB4-4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: KSB4-4
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-043-1270
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 06/19/1977

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 item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

0.3380 inches minimum and 0.3430 inches maximum inner member width, 57.0 rockwell c minimum and 61.0 rockwell c maximum inner member hardness rating, groove internal outer member lubrication feature, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, perforation outer race member lubrication feature

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-043-1270 . Find dimensions, materials, tolerances, performance characteristics, etc.

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

Frequently Asked Questions

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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.