142641-01

View detailed technical data, stock status, and sourcing information for: 142641-01
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3020 Gears, Pulleys, Sprockets and Transmission Chain

National Stock Number

3020-00-078-3308

Item Name Code

36636

Assigment Date

08/11/1967 (59 years ago)

A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes:gear subassembly, speed decreaser.

spur first gear design type, 0.3048 inches second gear nominal outside diameter, spur second gear design type, plain both ends bore style, solid construction

Product Characteristics

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

Bore Style: plain both ends
Design Type: spur second gear
Design Type: spur first gear
Construction: solid
Nominal Outside Diameter: 0.3048 inches second gear
Nominal Outside Diameter: 1.138 inches first gear
Nominal Overall Length: 0.280 inches
Hub Nominal Length: 0.0290 inches first end
Bore Nominal Diameter: 0.126 inches both ends
Hub Style Designator: plain first end
Hub Nominal Diameter: 0.275 inches first end
Precision Classification: quality number 10 or quality number 11 all gears
Material: copper alloy 642 second gear
Material: steel comp 303s first gear
Material Document And Classification: mil-s-7720,comp 303s mil spec single material response first gear
Material Document And Classification: qq-b-769,comp 1 cancelld fed spec single material response second gear
Surface Treatment: passivate first gear

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
142641-01	Gear Cluster

FAQs

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

What is the FSCG of the NSN 3020-00-078-3308?

The FSCG of the NSN 3020-00-078-3308 is 3020

Does the NSN 3020-00-078-3308 have a Schedule B code assigned?

Yes, the Schedule B code is 8483409000

Does NSN 3020-00-078-3308 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 3020-00-078-3308 contain precious materials?

Precious metal content is unknown

Does NSN 3020-00-078-3308 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 3020-00-078-3308 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Aug 11, 1967