Airframe Ball Bearing

MS27641-20

MS27641-20
(NSN) National Stock Number
3110-00-027-8143
Federal Supply Classification
3110 Unmounted Antifriction Bearings
Item Name Code
00041
Schedule B Code
8482105068
Summary

1.2500 inches nominal bore diameter, 2.2500 inches nominal overall outside diameter, 0.4380 inches nominal outer ring width, 0.5000 inches nominal inner ring width, 2 seal quantity, contact bearing seal type

DAC HCC DMIL RNCC
4 - - 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
1.2500 inches nominal
Details The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
Overall Outside Diameter
2.2500 inches nominal
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
0.4380 inches nominal
Details None.
Inner Ring Width
0.5000 inches nominal
Details None.
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.
Standard Tolerance Designation
afbma std tolerance for airframe ball bearings
Details The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.
Special Features
80 pct.full of mil-g-81322,internal radial clearance 0.0004- 0.0010 in.,heat treat rings and balls to rockwell c 60 to 66 and stabilized for operation at 250 deg. f,radial and @lateral eccentricity inner ring 0.0010 in. outer ring 0.0016 in.
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 Document And Classification
mil-g-81322 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
plastic polytetrafluoroethylene seal
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp e51100 or steel comp e52100 ball
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp e52100 inner ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp e52100 outer ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel corrosion resisting retainer
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
66 fed std all material responses ball
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Material Document And Classification
66 fed std single material response inner ring
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Material Document And Classification
66 fed std single material response outer ring
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Material Document And Classification
ams 3652 assn std single material response or ams 3666 assn std single material response seal
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
cadmium exposed surfaces as mounted
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.
Surface Treatment Document And Classification
qq-p-416,ty 1,cl 2 fed spec single treatment response exposed surfaces as mounted
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Style Designator
single row inner ring extended both sides
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
KP20AFS464 06144 4 - 5 9 - ZZ
AT25-101D 15860 5 - 5 9 - KZ
KP20AFS464 21335 4 - 5 9 - KZ
KP20A 38443 5 - 5 9 - KZ
KP20A 21760 5 - 5 9 - KZ
AS27641-20 0U583 4 - 3 1 - ZZ
MS27641-20 0U583 5 - 3 2 - ZZ
SAE AS27641 0U583 5 - 3 1 - ZZ
AS27641-20 81343 4 - 5 9 - ZZ
MS27641-20 81343 5 - 5 9 - ZZ
SAE AS27641 81343 5 - 5 9 - ZZ
SAE AS27641-20 81343 5 - 5 9 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
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
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
CAGE: 96906
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FAQs
Frequently asked questions for NSN 3110-00-027-8143
What is the NIIN of the NSN 3110-00-027-8143?
The National Item Identification Number (NIIN) of the NSN 3110-00-027-8143 is 00-027-8143
When the NSN 3110-00-027-8143 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Thu, Jan 13, 1972
Does the NSN 3110-00-027-8143 contain any precious metals?
Type/content is unknown
Does the NSN 3110-00-027-8143 contain any hazardous material?
No data in HMIRS

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