Helical Gear NSN 3020-00-921-3212

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: 3020-00-921-3212

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Features and Characteristics

Body Style

Webbed, offset, solid

Pitch Diameter

4.2000 inches

Teeth Quantity

Bore Style

Tapered w/keyway second end

Hardness Rating

22.8 rockwell c and 29.9 rockwell c

Outside Diameter

4.400 inches

Nominallength

1.034 inches

Teeth Type

Single helix

Tooth Form

Standard

Tooth Direction

Left

Pressure Angle

20.0000 degrees

Helix Angle

17.7528 degrees

Distance Between Body Face And Protruding Hub End

0.283 inches first end

Distance Between Body Face And Recessed Hub End

0.222 inches second end

Face Width

0.750 inches

Keyway Width

0.158 inches both ends

Distance From Bore Center To Keyway Bottom

0.447 inches both ends

Taper Major Diameter

0.736 inches second end

Hub Style Designator

Plain both ends

Hub Diameter

1.550 inches second end

Special Features

Timing marks a and h stamped on 2nd side of gear face 99 degrees angular relationship

Material

Steel

Style Designator

One protruding hub, one recessed hub

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

009213212

NSN

3020009213212

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

1S6020

Cage Code:

11083

Status:

MSDS:

Part Number:

8M4636

Cage Code:

74006

Status:

MSDS:

Part Number:

IPD1S6020

Cage Code:

55883

Status:

MSDS:

Part Number:

IPD7N4535

Cage Code:

55883

Status:

MSDS:

Part Number:

IPD8M4636

Cage Code:

55883

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 3020-00-921-3212

What are the manufacturers of nsn 3020009213212?

Does this nsn 3020009213212 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020009213212
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 3020009213212 contain any precious metals?
Precious metal content is unknown.

Does nsn 3020009213212 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020009213212?
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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