Airframe Ball Bearing

MDW4K2

MDW4K2
(NSN) National Stock Number
3110-00-012-0483
Federal Supply Classification
3110 Unmounted Antifriction Bearings
Item Name Code
00041
Schedule B Code
8482105068
Summary

0.2497 inches minimum and 0.2500 inches maximum bore diameter, 0.6246 inches minimum and 0.6250 inches maximum overall outside diameter, 0.4950 inches minimum and 0.5000 inches maximum outer ring width, 0.5595 inches minimum and 0.5620 inches maximum inner ring width, pressed retainer fabrication method, 2 seal quantity

DAC HCC DMIL RNCC
3 - - 5
RNVC SADC MSDS RNAAC
9 - - TG
Identification

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.

INC FIIG Concept Condition
00041 A044A0 - 1
Specifications
Bore Diameter
0.2497 inches minimum and 0.2500 inches maximum
Details The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
Overall Outside Diameter
0.6246 inches minimum and 0.6250 inches maximum
Details The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.
Outer Ring Width
0.4950 inches minimum and 0.5000 inches maximum
Details None.
Inner Ring Width
0.5595 inches minimum and 0.5620 inches maximum
Details None.
Retainer Fabrication Method
pressed
Details The means used in manufacturing the retainer.
Seal Quantity
2
Details The number of seals included on the item.
Bearing Seal Type
contact
Details Indicates the type of seal provided with the bearing.
Load Direction
radial
Details The direction of load with respect to the shaft axis.
Special Features
0.0001 in. min 0.0005 in. max radial clearance under 2.2 lb load and 0.0020 in. axial play under 5.5 lb load,outward convergent contact angle
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Lubrication Material
grease
Details The chemical compound or mechanical mixture properties with which the item is lubricated.
Lubrication Material Document And Classification
mil-g-23827 mil spec single material response
Details The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the lubrication material.
Material
steel ball
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
rubber synthetic seal
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel inner ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel outer ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel retainer
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium all external/exposed metal surfaces
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Style Designator
double row
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
C707MDW4K2 3NPS1 5 - 3 2 - ZZ
MDW4K2FS428 3NPS1 6 - 5 9 - ZZ
C707MDW4K2 21335 6 - 3 2 - ZZ
MDW4K2FS160 21335 4 - 5 9 - KZ
MDW4K2FS428 21335 6 - 5 9 - ZZ
MDWK2FS428 21335 4 - 5 9 - KZ
C707MDW4K2 81755 1 - 7 2 - KZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
58860 - P -
RVC WCC TCC SHC
- 742 Z 9

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Manufacturer
TIMKEN CO DIV THE TIMKEN COMPANY
CAGE: 21335
LEBANON , NH , 03766-2614
UNITED STATES
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FAQs
Frequently asked questions for NSN 3110-00-012-0483
What is the NIIN of the NSN 3110-00-012-0483?
The National Item Identification Number (NIIN) of the NSN 3110-00-012-0483 is 00-012-0483
When the NSN 3110-00-012-0483 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Tue, Apr 25, 1967
Does the NSN 3110-00-012-0483 contain any precious metals?
Does not contain precious metal
Does the NSN 3110-00-012-0483 contain any hazardous material?
No data in HMIRS

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