Cummins 20495 Gear, Helical

Cummins 20495 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 20495 as the maker's own number under government stock item NSN 3020-00-779-6337. 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 3020-00-779-6337, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Gear, Helical

Government stock item (NSN)

3020-00-779-6337

Manufacturer code (CAGE)

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

Attachment method

Mounting hole

Pitch diameter

10.0940 in (nominal)

Teeth quantity

78

Features provided

Single helix

Mounting hole type and quantity

Axially through body first end plain 2

Nominal outside diameter

10.341 in

Tooth form

Standard

Tooth direction

Left

Pressure angle

20.0000 degrees

Helix angle

15.0000 degrees

Nominal distance between body face and recessed hub end

• First end: 0.718 in
• Second end: 0.843 in

Face nominal width

2.250 in

Bore nominal diameter

Both ends: 2.7500 in

Counterbore nominal depth

First end: 0.250 in

Counterbore nominal diameter

First end: 4.375 in

Hub nominal diameter

• First end: 5.000 in
• Second end: 4.500 in

Mounting hole nominal diameter

• Axially through body first end: 0.374 in
• Axially through body second end: 0.437 in

Bolt hole circle nominal diameter

Axially through body first end: 3.500 in

Special features

Four MTG holes on second end

Material

Overall: steel

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.

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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.