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Airframe Ball Bearing NSN 3110-01-356-8991

Item Description

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.

NSN 3110-01-356-8991 NSN: 3110-01-356-8991

  Stock Availability

NSN 3110013568991 availability
(as of 01/18/2022).

  • NS: 15
  • NE: 17

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Bore Diameter
0.2500 inches
Overall Outside Diameter
0.7500 inches
Lubrication Material
Grease
Outer Ring Width
0.2190 inches
Inner Ring Width
0.2810 inches
Seal Quantity
2
Bearing Seal Type
Contact
Alignment Type
Self-aligning
Load Direction
Radial
Self-alignment Location
Internal
Standard Tolerance Designation
Afbma standard tolerance for airframe ball bearings
Special Features
80 pct. Full of mil-g-23827, axial play 0.025 in. Max, heat treat rings and balls to rockwell c 60 to 66 and stablized for operation at 250 deg.F, 8 degrees self-aligning in either direction
Lubrication Material Specification
Mil-g-23827 military specification single material response
Material
Steel comp e51100 ball or steel comp e52100 ballsteel comp e52100 inner ringsteel comp e52100 outer ringstainless steel retainerplastic polytetrafluoroethylene seal
Material Specification
66 federal standard all material responses ball66 federal standard single material response inner ring66 federal standard single material response outer ringams 3652 assn standard single material response seal or ams 3666 assn standard single material response seal
Surface Treatment
Cadmium exposed surfaces as mounted
Surface Treatment Specification
Qq-p-416, type 1, cl 2 federal specification single treatment response exposed surfaces as mounted
Style Designator
Single row self aligning single row inner ring extended both sides
FSC
3110 Unmounted Antifriction Bearings
NIIN
013568991
NSN
3110013568991

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AS27645
Cage Code:
81343
Status:
A
MSDS:
Part Number:
AS27645-4AG
Cage Code:
81343
Status:
A
MSDS:
Part Number:
MS27645-4AG
Cage Code:
96906
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8482105068
  • NAICS: 332991
  • SITC: 74610
  • Description: Ball bearings, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3110-01-356-8991
What are the manufacturers of nsn 3110013568991?
Does this nsn 3110013568991 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3110013568991
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.
Does nsn 3110013568991 contain any precious metals?
No precious metal content.
Does nsn 3110013568991 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3110013568991?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
00041
FIIG:
A044A0
App. Key:
B
Cond. Code:
1
Status:
A

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