Detroit Diesel 5120762 Generator, Tachometer

Detroit Diesel 5120762 is a alternator 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 5120762 as the maker's own number under government stock item NSN 6680-00-557-5963. 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 6680-00-557-5963, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Generator, Tachometer

Government stock item (NSN)

6680-00-557-5963

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.

Overall height

5.000 in

Overall length

4.750 in

Overall width

3.250 in

Electrical resistance

Ohms: 10.0

Keyway width

Single end: 0.060 in (nominal)

Shaft diameter

Single end: 0.1880 in (nominal)

Current type

Input: DC

Shaft rotation direction

Single end: clockwise or counterclockwise

Mounting method

Swivel nut coupling

Mounting facility type and quantity

Threaded coupling: 1

Excitor type

Separately excited

Accuracy range in percent

-0.5 to 0.5

Calibration speed in RPM

1000.0

Key height above shaft

Single end: 0.037 in (nominal)

Calibration voltage output type in volts

DC 3.0

Features provided

Horizontal mounting position and vertical mounting position

Length of shaft from housing

Single end: 0.203 in

Rotor speed rating in RPM

Low full load 300.0 and high full load 3000.0

Current rating in amps

Input single 0.060

Shaft end characteristic

Single end single style A30

Type/model designation

M-1200-C

Terminal type and quantity

Connector, plug: 1

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)

Charges the batteries and supplies electric power while the engine runs. A charging warning, low voltage or noise point to it. Check voltage, output in amps, mounting and pulley.

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.