9F8678

View detailed technical data, stock status, and sourcing information for: 9F8678
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-289-7880

Item Name Code

05466

Assigment Date

01/01/1963 (63 years ago)

w/ keyway both ends bore style, 31 teeth quantity, 3.0820 inches nominal pitch diameter, webbed, offset, solid body style, mounting hole attachment method

Product Characteristics

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

Body Style: webbed, offset, solid
Attachment Method: mounting hole
Pitch Diameter: 3.0820 inches nominal
Teeth Quantity: 31
Bore Style: w/ keyway both ends
Mounting Hole Type And Quantity: 1 plain axially through body, first end
Nominal Outside Diameter: 3.281 inches
Nominal Overall Length: 1.062 inches
Tooth Form: standard
Pressure Angle: 20.0000 degrees
Nominal Distance Between Body Face And Protruding Hub End: 0.063 inches second end
Nominal Distance Between Body Face And Protruding Hub End: 0.500 inches first end
Face Nominal Width: 0.500 inches
Bore Nominal Diameter: 0.625 inches both ends
Keyway Nominal Width: 0.156 inches both ends
Nominal Distance From Bore Center To Keyway Bottom: 0.390 inches both ends
Hub Style Designator: pinned first end
Hub Style Designator: plain second end
Hub Nominal Diameter: 1.156 inches second end
Mounting Hole Nominal Diameter: 0.188 inches transversely through hub, first end
Special Features: hole 105 deg from center of keyway to center of hole,3/32 in. by 45 deg chamfer on both sides of teeth,first end of bore countersunk 3/32 in. by 120 deg,second end of bore countersunk 1/16 in. by 60 deg
Material: steel overall
Style Designator: protruding hubs

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
9F8678	Spur Gear

FAQs

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

What is the FSCG of the NSN 3020-00-289-7880?

The FSCG of the NSN 3020-00-289-7880 is 3020

Does the NSN 3020-00-289-7880 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-289-7880 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 3020-00-289-7880 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-289-7880 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 3020-00-289-7880 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963