Model: ATF-28

Needle Roller Bearing

Properties:

Bore Diameter
1.7500 inches
Overall Outside Diameter
3.4375 inches
Lubrication Material
Grease
Outer Ring Width
1.5000 inches
Inner Ring Width
1.4400 inches
Surface Finish
Ground
Seal Quantity
2
Lubrication Material Specification
Mil-g-23827 military specification single material response
Material
Plastic acetal seal or plastic polyethylene terephthalate seal
Material
Steel end plate
Material
Steel inner ring
Material
Steel outer ring
Material
Steel roller
Style Designator
Track roller
NSN
3110-01-390-3809
Part Number
ATF-28
Description
Bearing,roller,needle
CAGE
21335

A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

Part ATF-28 NSN 3110-01-390-3809

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00051
FIIG:
A044A0
Concept No.:
App. Key:
M
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:
114800
UFC:
58850
LTL:
RATING VARIABLE
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482400000
  • SITC: 74640
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Needle roller bearings

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