Cummins 203660 Bearing Half, Sleeve

Cummins 203660 is a engine bearing 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 203660 as the maker's own number under government stock item NSN 3120-00-300-0884. 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 3120-00-300-0884, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Bearing Half, Sleeve

Government stock item (NSN)

3120-00-300-0884

Manufacturer code (CAGE)

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

Hole diameter

First: 0.1875 in (nominal)

Overall length

1.7200 to 1.7300 in

Body outside diameter

3.2730 in (nominal)

Body inside diameter

3.1270 to 3.1285 in

Locking lug height

0.0450 to 0.0550 in

Locking lug length

0.2188 in (nominal)

Locking lug width

0.2380 to 0.2430 in

Corner shape

All corners: square

Antirotation/lubrication type and quantity

Hole: 1

Distance from lug end to end of bearing

0.1520 to 0.1570 in

Material

• Inner layer: copper alloy
• Lubrication: oil lubricating
• Outer layer: steel comp 1010

Surface treatment

Overall: lead

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)

A thin shell that the crankshaft or camshaft turns in, carried by an oil film. Low oil pressure, knocking or metal in the oil point to worn bearings. Check whether it is a main, rod or cam bearing, standard or undersize, and upper or lower half.

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.