MKSP4

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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-142-6571

Item Name Code

00041

Assigment Date

07/03/1969 (57 years ago)

A cylindrical item in which the inner or outer ring turns upon row(s) of hardened ball, bearing which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes:bearing,ball,annular.

0.4840 inches nominal inner ring width, 0.3350 inches nominal outer ring width, 0.9014 inches nominal overall outside diameter, 2 seal quantity, 0.2500 inches nominal bore 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: 0.2500 inches nominal
Overall Outside Diameter: 0.9014 inches nominal
Outer Ring Width: 0.3350 inches nominal
Inner Ring Width: 0.4840 inches nominal
Seal Quantity: 2
Bearing Seal Type: contact
Alignment Type: self-aligning
Load Direction: radial
Self-Alignment Location: internal
Special Features: seal to be 10 deg self alingnment in either direction,40 to 50 pct full of specified lubricant,0.4400 in. oz max starting torque
Lubrication Material: grease
Lubrication Material Document And Classification: mil-g-23827 mil spec single material response
Material: rubber synthetic seal
Material: steel ball
Material: steel inner ring
Material: steel outer ring
Surface Treatment: cadmium all external/exposed metal surfaces

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
38950-00903-103	Airframe Ball Bearing
MKSP4	Airframe Ball Bearing
MKSP4A1173	Airframe Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-142-6571?

The FSCG of the NSN 3110-00-142-6571 is 3110

Does the NSN 3110-00-142-6571 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105068

Does NSN 3110-00-142-6571 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 3110-00-142-6571 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-00-142-6571 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 3110-00-142-6571 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Thu, Jul 3, 1969