Cummins 66890 Guide, Valve Stem

Cummins 66890 is a engine component in Engine Parts, US catalog. Listed by US Government (DLA FLIS), October 2026.

Specifications from Engine parts list (publisher, brand and date not printed)

Name as printed

GUIDE,VALVE STEM

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

The U.S. government's Federal Logistics Information System (FLIS) records Cummins 66890 as the maker's own number under government stock item NSN 2815-00-353-9367. 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 2815-00-353-9367, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Guide, Valve Stem

Government stock item (NSN)

2815-00-353-9367

Manufacturer code (CAGE)

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

Overall length

3.440 in (nominal)

Outside diameter

0.811 in (nominal)

Bore diameter

0.4000 in (nominal)

Major diameter length

0.206 in (nominal)

AA end diameter

0.752 in (nominal)

BB end shank diameter

0.751 in (nominal)

BB end chamfer length

0.145 in (nominal)

BB end chamfer angle in deg

30.0

AA end chamfer length

0.150 in (nominal)

AA end chamfer angle in deg

45.0

Shoulder second fillet radius

0.098 in (nominal)

Length from AA end to largest diameter face

1.099 in (nominal)

Special features

One groove 0.075 in. wide,0.728 in.dia,2.000 in.from the longest end

Material

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)

A part of an engine named by its use. Replaced when worn, leaking or damaged. Check the engine model and serial range.

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

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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.