Detroit Diesel 5138938 Gear, Helical

Detroit Diesel 5138938 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 Detroit Diesel 5138938 as the maker's own number under government stock item NSN 3020-01-118-2643. 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 3020-01-118-2643, 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)

3020-01-118-2643

Manufacturer code (CAGE)

72582, ROLLS-ROYCE SOLUTIONS AMERICA INC DBA ROLLS-ROYCE SOLUTIONS AMERICA INC, NOVI, MI, UNITED STATES
Detroit Diesel part numbering. This manufacturer code is now held by Rolls-Royce Solutions America.

Attachment method

Mounting hole

Pitch diameter

8.9000 in (nominal)

Teeth quantity

68

Features provided

Single helix

Mounting hole type and quantity

Axially through body first end plain 4

Nominal outside diameter

9.200 in

Tooth form

Special

Tooth direction

Right

Pressure angle

20.0000 degrees

Helix angle

18.0000 degrees

Face nominal width

0.656 in

Bore nominal diameter

Both ends: 6.000 in

Mounting hole nominal diameter

Axially through body first end: 0.390 in

Bolt hole circle nominal diameter

Axially through body first end: 7.750 in

Special features

MTG holes 90 deg apart

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.