Helical Gear NSN 3020-00-391-0923

Item Description

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

NSN: 3020-00-391-0923

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Features and Characteristics

Body Style

Webbed, offset, solid

Attachment Method

Mounting hole

Pitch Diameter

8.6250 inches

Teeth Quantity

Bore Style

W/counterbore counterbore, first end

Mounting Hole Thread Series Designator

Unf axially through hub, first end

Hardness Rating

10.0 rockwell c and 13.0 rockwell c

Mounting Hole Thread Size

0.375 inches axially through hub, first end

Mounting Hole Type And Quantity

4 plain axially through hub, first end and 4 threaded axially through hub, first end

Outside Diameter

8.874 inches

Teeth Type

Single helix

Tooth Form

Standard

Tooth Direction

Right

Pressure Angle

14.5000 degrees

Helix Angle

25.8167 degrees

Distance Between Body Face And Protruding Hub End

0.188 inches first end

Body Recess Depth

1.000 inches second end

Face Width

1.250 inches

Bore Diameter

4.375 inches counterbore, first end

Counterbore Depth

0.188 inches counterbore, first end

Counterbore Diameter

6.252 inches counterbore, first end

Hub Style Designator

Plain first end

Hub Diameter

6.750 inches first end

Mounting Hole Diameter

0.500 inches axially through hub, first end

Special Features

Figure o stamped on side of gear face on center line of tooth space on upper vertical ctr line

Material

Steel

Material Specification

Mil-s-890, class b military specification single material response

Style Designator

Protruding hub, recessed body

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

003910923

NSN

3020003910923

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

3237747

Cage Code:

55380

Status:

MSDS:

Part Number:

N9809PC125

Cage Code:

24617

Status:

MSDS:

Part Number:

K-323-747

Cage Code:

18954

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8483409000
NAICS: 333612
SITC: 74840
Description: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 3020-00-391-0923

What are the manufacturers of nsn 3020003910923?

Does this nsn 3020003910923 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020003910923
A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. see also gear, antibacklash, helical:

Does nsn 3020003910923 contain any precious metals?
Precious metal content is unknown.

Does nsn 3020003910923 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020003910923?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

05464

FIIG:

A27300

App. Key:

Cond. Code:

Status:

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