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EMU20U — GENERATOR SET,DIESEL ENGINE

✓ Government record, cited
DEPARTMENT OF THE AIR FORCE · MOTOR
PRODUCT OVERVIEW

EMU20U: GENERATOR SET,DIESEL ENGINE.

The GENERATOR SET,DIESEL ENGINE is a DEPARTMENT OF THE AIR FORCE industrial component. Key specifications include PHASE: THREE, CURRENT TYPE: AC, EXCITOR TYPE: SEPARATELY EXCITED, HOUSING TYPE: INCLOSED, OVERALL WIDTH: 36.000 INCHES NOMINAL IN, COOLING METHOD: RADIATOR. This part is cataloged in the U.S.

Government catalog under NSN 6115-00-116-2216, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
EMU20U
NSN: 6115-00-116-2216
FSC: 6115 — Generators and Generator Sets, Electrical
CAGE: 80049 — DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
PHASETHREE
CURRENT TYPEAC
EXCITOR TYPESEPARATELY EXCITED
HOUSING TYPEINCLOSED
OVERALL WIDTH36.000 INCHES NOMINAL IN
COOLING METHODRADIATOR
INCLOSURE TYPEFULLY INCLOSED
OVERALL HEIGHT60.000 INCHES NOMINAL IN
OVERALL LENGTH74.000 INCHES NOMINAL IN
FREQUENCY RATING400.0 HERTZ NOMINAL
AC WATTAGE RATING15.0 KILOWATTS
IDENTIFYING NUMBER66-1897-31-71 PART NO.
NSN6115-00-116-2216
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: EMU20U · DEPARTMENT OF THE AIR FORCE ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CRANKING VOLTAGE IN VOLTS: 24.0
•
PHASE: THREE
•
INCLOSURE TYPE: FULLY INCLOSED
•
CURRENT TYPE: AC
•
LINE TO LINE VOLTAGE IN VOLTS: 208.0
•
PRIME MOVER IDENTIFYING NUMBER: D198ERX25 MODEL NO.
•
IDENTIFYING NUMBER: 66-1897-31-71 PART NO.
TECHNICAL CHARACTERISTICS
CRANKING VOLTAGE IN VOLTS24.0
OVERALL HEIGHT60.000 INCHES NOMINAL IN
PHASETHREE
INCLOSURE TYPEFULLY INCLOSED
CURRENT TYPEAC
LINE TO LINE VOLTAGE IN VOLTS208.0
PRIME MOVER IDENTIFYING NUMBERD198ERX25 MODEL NO.
IDENTIFYING NUMBER66-1897-31-71 PART NO.
TEMP RISE RATING IN DEG CELSIUS FOR CONTINUOUS OPERATION75.0
COOLING METHODRADIATOR
SUBSTITUTES & CROSS-REFERENCES 3
67D40549Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
0130-1000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MILG38441Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EMU20U?
EMU20U is a GENERATOR SET,DIESEL ENGINE manufactured by DEPARTMENT OF THE AIR FORCE.
What parts can replace EMU20U?
There are 3 known substitutes for EMU20U: 67D40549, 0130-1000, MILG38441. Substitute compatibility should be verified for your specific system.
What is the NSN for EMU20U?
EMU20U is cataloged in the U.S. Government catalog under NSN 6115-00-116-2216. This indicates validated use in U.S. government and defense supply chains.
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