Model: MS27645-4AG

Airframe Ball Bearing

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

Properties:

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
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
NSN
3110-01-356-8991
Part Number
MS27645-4AG
Description
Bearing,ball,airframe
CAGE
96906

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.

Part MS27645-4AG NSN 3110-01-356-8991

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00041
FIIG:
A044A0
Concept No.:
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482105068
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Ball bearings, nesoi

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