Model: NA4844

Needle Roller Bearing

Properties:

Overall Width
50.0000 millimeters
Bore Diameter
220.0000 millimeters
Overall Outside Diameter
270.0000 millimeters
Lubrication Material
Oil
Cubic Measure
1728.000 cubic inches
End Application
Used in schottel bow thruster 378 ft whec coast guard vessels
Surface Finish
Ground
Retainer Fabrication Method
Machined
Alignment Type
Rigid
Unpackaged Unit Weight
50.0 pounds
Material
Steel
Style Designator
Non-separable, with roller retainer, hardened and ground
NSN
3110-00-768-8406
Part Number
NA4844
Description
Bearing,roller,needle
CAGE
58741

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 NA4844 NSN 3110-00-768-8406

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

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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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