27478C

View detailed technical data, stock status, and sourcing information for: 27478C
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-200-2178

Item Name Code

05466

Assigment Date

01/01/1963 (63 years ago)

plain both ends bore style, plain, solid body style, 11.8450 inches minimum and 11.8550 inches maximum pitch diameter, 33.0 rockwell c minimum and 45.0 rockwell c maximum teeth hardness rating, 97 teeth quantity

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: 11.8450 inches minimum and 11.8550 inches maximum
Teeth Quantity: 97
Bore Style: plain both ends
Hardness Rating: 33.0 rockwell c minimum and 45.0 rockwell c maximum teeth
Nominal Outside Diameter: 12.050 inches
Tooth Form: standard
Pressure Angle: 14.5000 degrees
Face Nominal Width: 0.547 inches
Bore Nominal Diameter: 10.999 inches both ends
Material: steel comp 1050 overall
Material Document And Classification: 66 fed std single material response and aisi/sae 1050 assn std single material response 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
27478C	Spur Gear
27516RG	Spur Gear
28437C	Spur Gear

FAQs

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

What is the FSCG of the NSN 3020-00-200-2178?

The FSCG of the NSN 3020-00-200-2178 is 3020

Does the NSN 3020-00-200-2178 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-200-2178 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 3020-00-200-2178 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-200-2178 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 3020-00-200-2178 was assigned to the Federal Catalog?

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