MKSP4

MKSP4 Ball Airframe Bearing

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Quality Commitment

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Datasheet. MKSP4 specification

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

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.

0.9014in.

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

grease

Outer Ring Width

0.3350in.

Inner Ring Width

0.4840in.

Seal Quantity
The number of seals included on the item.

2

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

contact

Alignment Type
Indicates the type of alignment utilized whereby the item will adjust axially for misalignment.

SELF-Aligning

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

radial

Self-alignment Location
Indicates the location of the self-alignment feature.

internal

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.

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 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-23827 mil spec single material response

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

rubber synthetic seal

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

steel ball

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

steel inner ring

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

steel outer ring

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

Answers.

What quantity is this sold in?

1EA

What material is the ball airframe bearing made of ?

Steel outer ring

What material is the ball airframe bearing made of ?

Steel inner ring

What material is the ball airframe bearing made of ?

Steel ball

What material is the ball airframe bearing made of ?

Rubber synthetic seal

What is the NSN for MKSP4?

3110-00-142-6571

How is this classified for shipping?

Schedule B number: 8482105068
nmfc 114820
Ball bearings

What's the federal classification of MKSP4?

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 3110-00-142-6571 BEARING,BALL,AIRFRAME

cadmium all external/exposed metal surfaces surface treated 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 0.2500" bore diameter

NIIN
001426571
NIIN Date
07/03/69
Schedule B
8482105068 
Name Code
00041
FIIG
A044A0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$164.75 EA
DEMIL / ITAR
USML/ITAR controlled item (Code: Q)
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. 38950-00903-103 Cage 50294
2. MKSP4A1173 Cage 21335
3. 38950-00903-103 Cage 78286

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Navy 
  • - Department of The Air Force 
  • - Austria 
  • - Slovakia 
  • - Brazil 
  • - Spain 
  • - Singapore 
  • - Australia 
  • - Republic of Korea 
  • - Turkey 

Major End Items End use applications

  • - Helicopter, black hawk uh-60a
  • - Helicopter, ch-53a/d/e
  • - Helicopter, lamps mark iii, sh-60b
  • - Helicopter, mh-53e
  • - Helicopter, carrier based asw, sh-60f
  • - Helicopter, search and rescue, hh-60h
  • - Helicopter, uscg search and rescue, hh-60j
  • - Hh-60l medivac
  • - Helicopter, electronic countermeasures, eh-60a
  • - Helicopter, seahawk, h-60
  • - Ch 47 (rotary wing aircraft)

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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

MKSP4 / 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.