Cummins 156897 Gear, Helical

Cummins 156897 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 156897 as the maker's own number under government stock item NSN 3020-00-682-7707. 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 3020-00-682-7707, 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)

3020-00-682-7707

Manufacturer code (CAGE)

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

Attachment method

Mounting hole

Pitch diameter

5.0470 in (nominal)

Teeth quantity

39

Features provided

Single helix

Mounting hole thread quantity per inch

16

Mounting hole type and quantity

Axially through body first end threaded 2

Nominal outside diameter

5.294 in

Nominal overall length

2.235 in

Tooth form

Standard

Tooth direction

Left

Pressure angle

20.0000 degrees

Helix angle

15.0000 degrees

Nominal distance between body face and protruding hub end

First end: 0.735 in

Face nominal width

1.500 in

Keyway nominal width

Both ends: 0.500 in

Nominal distance from bore center to keyway bottom

Both ends: 1.927 in

Hub nominal diameter

First end: 4.190 in

Bolt hole circle nominal diameter

Axially through body first end: 4.060 in

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.