Model: A-509-278 ITEM NO 33

Annular Ball Bearing

Special Features:

Locknut retained

Properties:

Overall Width

1.9685 inches

Bore Diameter

Between 4.3304 inches and 4.3307 inches

Overall Outside Diameter

Between 9.4485 inches and 9.4488 inches

Surface Finish

Ground

Load Direction

Radial

Bore Shape

Straight

Criticality Code Justification

Zzzw

Material

Chromium alloy

Material Specification

Astm a 295 assn standard single material response

Style Designator

Non-loading groove, non-separable

Departure From Cited Document

Quiet operation tested for submarine usage

NSN

3110-01-319-0021

Part Number

A-509-278 ITEM NO 33

Description

Bearing,ball,annular

CAGE

51802

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 A-509-278 ITEM NO 33 NSN 3110-01-319-0021

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:

6.0 X 6.0 X 6.0

Paclk Weight:

0.5000lbs

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

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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