Cummins 7686-3 Gear, Bevel

Cummins 7686-3 is a gear in Engine Parts, US catalog. Listed by US Government (DLA FLIS), October 2026.

Government data (US Government (DLA FLIS), October 2026 edition)

The U.S. government's Federal Logistics Information System (FLIS) records Cummins 7686-3 as the maker's own number under government stock item NSN 3020-00-239-5631. The name and every fact below are FLIS's, credited to US Government (DLA FLIS), October 2026 edition.

Specifications recorded for government stock item NSN 3020-00-239-5631, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Gear, Bevel

Government stock item (NSN)

3020-00-239-5631

Manufacturer code (CAGE)

15434, CUMMINS INC., COLUMBUS, IN, UNITED STATES

Pitch diameter

1.5000 in (nominal)

Teeth quantity

18

Features provided

Straight teeth

Hardness rating

Overall: Rockwell C 44.0 to 47.0

Nominal outside diameter

1.6178 in

Nominal overall length

1.094 in

Pressure angle

14.5000 degrees and 45.0000 degrees

Nominal distance between body face and protruding hub end

Second end: 0.500 in

Body recess nominal depth

First end: 0.0930 in

Face nominal width

0.432 in

Bore nominal diameter

Both ends: 0.562 in

Bore nominal depth

Both ends: 1.000 in

Keyway nominal width

Both ends: 0.127 in

Nominal distance from bore center to keyway bottom

Both ends: 0.345 in

End nominal length

Second end: 0.500 in

End nominal diameter

Second end: 0.875 in

First step nominal diameter

Second end: 1.250 in

Special features

Bore style 10

Material

Overall: steel comp 4140

Other reference numbers listed under the same stock item

• LA GARY CO 7686-3

These numbers are recorded under the same government stock item. That is not a statement that the parts replace each other or fit the same equipment: confirm with the manufacturer.

Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.

About this kind of part (general, written by SearchForPart)

Parts of an engine or driveline assembly named by their shape. Replaced when worn, cracked or broken. Check the assembly they belong to and the position.

When ordering, give the part number exactly as printed and its maker, and the make, model and year of the truck, trailer, reefer unit or machine (or the engine or unit serial number). SearchForPart shows fitment only as the source printed it: check it before you order.

Availability

Not currently offered by an approved supplier. Ask us to source it and we look for a supplier.

Do you sell this part?

If you stock or supply this part, tell us about your business and what you sell.

Sell or Supply Parts

Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.