C21-2

View detailed technical data, stock status, and sourcing information for: C21-2
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3010 Torque Converters and Speed Changers

National Stock Number

3010-01-283-7231

Item Name Code

04459

Assigment Date

08/12/1988 (37 years ago)

A device for connecting the ends of two shafts to produce in effect, one piece of rigid shafting so that the rotary motion of one shaft is transmitted to the other shaft. Couplings of the sleeve type must have an over-all length exceeding the outside diameter, or must have an internal spline.

5.1250 inches nominal first end bore length, 5.500 inches nominal outside diameter, 2.6250 inches maximum both ends bore diameter, 2.2500 inches nominal second end bore length, 7.625 inches nominal overall length

Product Characteristics

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

Overall Length: 7.625 inches nominal
Outside Diameter: 5.500 inches nominal
Bore Diameter: 2.6250 inches maximum both ends
Bore Length: 2.2500 inches nominal second end
Bore Length: 5.1250 inches nominal first end
Bore Shape: rough stock both ends
Furnished Items And Quantity: setscrew 1
Design Type: internal gear
Features Provided: mill motor

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
C2-1/2 MILL MOTOR RB	Flexible Shaft Coupling
C2-1/2 ROUGH BORE	Flexible Shaft Coupling
C21-2	Flexible Shaft Coupling

FAQs

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

What is the FSCG of the NSN 3010-01-283-7231?

The FSCG of the NSN 3010-01-283-7231 is 3010

Does the NSN 3010-01-283-7231 have a Schedule B code assigned?

Yes, the Schedule B code is 8483608000

Does NSN 3010-01-283-7231 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 3010-01-283-7231 contain precious materials?

Item does not contain precious metal.

Does NSN 3010-01-283-7231 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 3010-01-283-7231 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Fri, Aug 12, 1988