IPD3B7944

View detailed technical data, stock status, and sourcing information for: IPD3B7944
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-275-3042

Item Name Code

05464

Assigment Date

01/01/1961 (65 years ago)

40 teeth quantity, 6.3333 inches nominal pitch diameter, w/ keyway both ends bore style, 82.9 rockwell b minimum and 96.4 rockwell b maximum teeth hardness rating, plain, solid body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: plain, solid
Pitch Diameter: 6.3333 inches nominal
Teeth Quantity: 40
Bore Style: w/ keyway both ends
Hardness Rating: 82.9 rockwell b minimum and 96.4 rockwell b maximum teeth
Hardness Rating: 82.9 rockwell b minimum and 96.4 rockwell b maximum hub
Nominal Outside Diameter: 6.6165 inches
Teeth Type: single helix
Tooth Form: standard
Tooth Direction: right
Pressure Angle: 20.0000 degrees
Helix Angle: 25.5438 degrees
Nominal Distance Between Body Face And Protruding Hub End: 1.1848 inches first end
Face Nominal Width: 1.625 inches
Bore Nominal Diameter: 2.7498 inches both ends
Keyway Nominal Width: 0.4935 inches both ends
Nominal Distance From Bore Center To Keyway Bottom: 1.605 inches both ends
Hub Style Designator: plain first end
Hub Nominal Diameter: 3.750 inches first end
Special Features: two 0.453 in. dia puller holes drilled 1.625 in. deep and counterbored 0.516 in. by 0.375 in. deep,tapped 0.500-20 nf thd size,180 deg apart 0n a 4.938 in. dia bolt circle,letter c marked on side of gear face 48 deg 51 min 30 sec to left of center line of keyway
Material: steel comp 1045 overall
Material Document And Classification: 66 fed std single material response and aisi/sae 1045 assn std single material response overall
Style Designator: protruding hub

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-352-7495	No Name Available	01/01/1963

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
3B7944	Helical Gear
IPD3B7944	Helical Gear

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3020-00-275-3042?

The FSCG of the NSN 3020-00-275-3042 is 3020

Does the NSN 3020-00-275-3042 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-275-3042 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3020-00-275-3042 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-275-3042 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 3020-00-275-3042 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961