Model: 20504-57

Annular Ball Bearing

Properties:

Overall Width

15.0 millimeters

Bore Diameter

25.00 millimeters

Overall Outside Diameter

52.00 millimeters

Surface Finish

Ground

Retainer Fabrication Method

Pressed

Shield Quantity

Load Direction

Radial

Bore Shape

Straight

Internal Fit-up Designation

Standard

Standard Tolerance Designation

Abec no.1

Material

Steel

Style Designator

Non-loading groove, non-separable

NSN

3110-00-293-9163

Part Number

20504-57

Description

Bearing,ball,annular

CAGE

83298

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 20504-57 NSN 3110-00-293-9163

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00014

FIIG:

A044A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.3000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

114820

UFC:

58860

LTL:

77.5

LCL:

WCC:

742

TCC:

SHC:

ACC:

Trailers/Vehicles

End Items End applications NSN 3110-00-293-9163 is a component of

Cargo/weapons Elevators
Main Feed Pumps
High Pressure Air Compressors
Jp-5 Aviation Fuels Systems
L.p. Compressors
Fire Pumps
Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
Fleet Vertical Package Conveyers
Kidd Class Ddg
008618088
Truck Mounted Crane-shovel
003714363
Tr Scanner Assembly
013708630
Alternating Current Motor
012271408
Reciprocating Compressor Unit
000090878
Aircraft Gearbox Assembly
010821658
Centrifugal Fan

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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