MDW4K

MDW4K Ball Airframe Bearing

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Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
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  •   Every product 100% inspected
AS9120 Certified by SAI Global

Datasheet. MDW4K specification

Bore Diameter
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

0.2497in. and 0.2500in.

Overall Outside Diameter
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

0.7496in. and 0.7500in.

Lubrication Material
The element,compound,or mixture with which the item is lubricated.

grease

Outer Ring Width

0.7450in. and 0.7500in.

Inner Ring Width

0.8725in. and 0.8750in.

Retainer Fabrication Method
The means used in manufacturing the retainer.

pressed

Seal Quantity
The number of seals included on the item.

2

Bearing Seal Type
Indicates the type of seal provided with the bearing.

contact

Load Direction
The direction of load with respect to the shaft axis.

angular

Internal Clearance
The clearance between the bearing rings and the rolling elements.

0.0005in. radial

Special Features
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.

80 pct full specified lubricant; outward convergent angle

Lubrication Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the lubrication material.

MIL-G-81322 mil spec single material response

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

plastic polytetrafluoroethylene seal

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp E52100 ball

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp E52100 inner ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp E52100 outer ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel corrosion resisting retainer

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel corrosion resisting snap ring

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

ams 3666 assn std single material response seal

Surface Treatment
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.

cadmium all external/exposed metal surfaces

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

double row

Answers.

What quantity is this sold in?

1EA

What is the style?

Double row

What material is the ball airframe bearing made of ?

Steel corrosion resisting snap ring

What material is the ball airframe bearing made of ?

Steel corrosion resisting retainer

What material is the ball airframe bearing made of ?

Steel comp e52100 outer ring

What material is the ball airframe bearing made of ?

Steel comp e52100 inner ring

What material is the ball airframe bearing made of ?

Steel comp e52100 ball

What material is the ball airframe bearing made of ?

Plastic polytetrafluoroethylene seal

What is the NSN for MDW4K?

3110-01-265-0576

How is this classified for shipping?

Schedule B number: 8482105068
nmfc 114820
Ball bearings

What's the federal classification of MDW4K?

FSC 3110 ⁓ Bearings, antifriction, unmounted

Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.

Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)

NSN 3110-01-265-0576 BEARING,BALL,AIRFRAME

double row cadmium all external/exposed metal surfaces surface treated 80 pct full specified lubricant; outward convergent angle 0.2497" bore diameter

NIIN
012650576
NIIN Date
10/09/87
Schedule B
8482105068 
Name Code
00041
FIIG
A044A0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$120.28 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. MDW4K-400 Cage 38443
2. MDW4K-H Cage 21760
3. MDW4K-400 Cage 38443
4. MDW4K-H Cage 21760
5. MDW4K-400 Cage 38443

Major End Users Countries and entities

  • - Department of The Air Force 
  • - Department of The Army 
  • - Department of The Navy 
  • - Spain 
  • - Australia 
  • - Republic of Korea 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing 
Commodity (for shipments via water)
Bearings 
NMFC (national motor freight code)
114820 BEARINGS/BUSHINGS NOI BALL/ROLLER 
UFC (universal freight code)
58860 

Similar by Design Other bearings with similar characteristics

Nothing similar to this part number was found in our inventory

MDW4K / Bearing,ball,airframeWhat is the formal definition of this item?

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.