Model: 253539

Annular Ball Bearing

Special Features:

Psilver plate cage 0.0005-0.0015 thk per ams 2412. No strike metal reqd.Bake 475-500f for 2hrs to check for bond on land riding surfaces and ball pockets. Lead plate all silver surfaces 0.0005-0.0015 thk per ams 2414

Properties:

Bore Diameter
Between 4.3304 inches and 4.3307 inches
Overall Outside Diameter
Between 5.9051 inches and 5.9055 inches
End Application
Aircraft eng j-57
Outer Ring Width
Between 0.7824 inches and 0.7874 inches
Inner Ring Width
Between 0.9950 inches and 1.0000 inches
Surface Finish
Ground
Retainer Fabrication Method
Machined
Load Direction
Radial
Bore Shape
Straight
Internal Clearance
0.0015 inches radial and 0.0019 inches radial
Standard Tolerance Designation
Abec no.5
Material
Copper alloy retainer
Material
Steel comp e51100 ball
Material
Steel comp e52100 inner ring
Material
Steel comp e52100 outer ring
Style Designator
26a non-loading groove, non-separable
Style Designator
Non-loading groove, non-separable
NSN
3110-00-696-0032
Part Number
253539
Description
Bearing,ball,annular
CAGE
77445

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part 253539 NSN 3110-00-696-0032

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00014
FIIG:
A044A0
Concept No.:
App. Key:
C
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:
S
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
77.5
WCC:
742
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8482105028
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Angular contact ball bearings, nesoi

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