82602B

View detailed technical data, stock status, and sourcing information for: 82602B
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-270-3450

Item Name Code

05464

Assigment Date

01/01/1961 (65 years ago)

3.5750 inches minimum and 3.5760 inches maximum pitch diameter, mounting hole attachment method, plain, solid body style, 30 teeth quantity, w/ keyway both ends bore 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
Attachment Method: mounting hole
Pitch Diameter: 3.5750 inches minimum and 3.5760 inches maximum
Teeth Quantity: 30
Bore Style: w/ keyway both ends
Mounting Hole Thread Series Designator: unc axially through body, first end
Mounting Hole Thread Quantity Per Inch: 18 axially through body, first end
Hardness Rating: 26.0 rockwell c nominal overall
Mounting Hole Nominal Thread Size: 0.312 inches axially through body, first end
Mounting Hole Type And Quantity: 2 threaded axially through body, first end
Nominal Outside Diameter: 3.7788 inches
Teeth Type: single helix
Tooth Form: standard
Tooth Direction: left
Pressure Angle: 14.5000 degrees
Helix Angle: 33.1172 degrees
Face Nominal Width: 1.248 inches
Bore Nominal Diameter: 2.248 inches both ends
Keyway Nominal Width: 0.251 inches both ends
Nominal Distance From Bore Center To Keyway Bottom: 0.251 inches both ends
Bolt Hole Circle Nominal Diameter: 2.813 inches axially through body, first end
Special Features: timing mark punched on center line of tooth and keyway
Material: steel comp 3140 or steel comp 4140 overall
Style Designator: hubless

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
82602B	Helical Gear

FAQs

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

What is the FSCG of the NSN 3020-00-270-3450?

The FSCG of the NSN 3020-00-270-3450 is 3020

Does the NSN 3020-00-270-3450 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-270-3450 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 3020-00-270-3450 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-270-3450 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 3020-00-270-3450 was assigned to the Federal Catalog?

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