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1225766 — MOTOR-TACHOMETER GENERATOR

✓ Government record, cited
NAVAL SEA SYSTEMS COMMAND · MOTOR
PRODUCT OVERVIEW

1225766: MOTOR-TACHOMETER GENERATOR.

The MOTOR-TACHOMETER GENERATOR is a NAVAL SEA SYSTEMS COMMAND industrial component. Key specifications include PHASE: TWO INPUT, CURRENT TYPE: AC INPUT, EXCITOR TYPE: SEPARATELY EXCITED, POWER RATING: 3.900 WATTS OUTPUT, OVERALL WIDTH: 1.062 INCHES IN, SPLINE LENGTH: 0.5480 INCHES NOMINAL SINGLE END IN. This part is cataloged in the U.S.

Government catalog under NSN 6105-00-556-8959, 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
1225766
NSN: 6105-00-556-8959
FSC: 6105 — Motors, Electrical
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
PHASETWO INPUT
CURRENT TYPEAC INPUT
EXCITOR TYPESEPARATELY EXCITED
POWER RATING3.900 WATTS OUTPUT
OVERALL WIDTH1.062 INCHES IN
SPLINE LENGTH0.5480 INCHES NOMINAL SINGLE END IN
COOLING METHODAMBIENT AIR
OVERALL HEIGHT1.062 INCHES IN
OVERALL LENGTH3.224 INCHES IN
SHAFT DIAMETER0.2083 INCHES NOMINAL SINGLE END IN
MOUNTING METHODFACE
SPLINE QUANTITY18 SINGLE END
NSN6105-00-556-8959
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 1225766 · NAVAL SEA SYSTEMS COMMAND ⚠ 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
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 THREADED HOLE(S)
•
SPLINE MINOR DIAMETER: 0.1870 INCHES NOMINAL SINGLE END IN
•
PHASE: TWO INPUT
•
SHAFT DIAMETER: 0.2083 INCHES NOMINAL SINGLE END IN
•
FREQUENCY IN HERTZ: 400.0 OUTPUT
•
CURRENT TYPE: AC INPUT
•
MOUNTING METHOD: FACE
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY4 THREADED HOLE(S)
SPLINE MINOR DIAMETER0.1870 INCHES NOMINAL SINGLE END IN
PHASETWO INPUT
SHAFT DIAMETER0.2083 INCHES NOMINAL SINGLE END IN
FREQUENCY IN HERTZ400.0 OUTPUT
CURRENT TYPEAC INPUT
OVERALL LENGTH3.224 INCHES IN
MOUNTING METHODFACE
SPLINE LENGTH0.5480 INCHES NOMINAL SINGLE END IN
COOLING METHODAMBIENT AIR
SUBSTITUTES & CROSS-REFERENCES 2
R804-3FReference document
Same NSN cross-reference
Reference document — Secondary reference
61-713Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1225766?
1225766 is a MOTOR-TACHOMETER GENERATOR manufactured by NAVAL SEA SYSTEMS COMMAND.
What parts can replace 1225766?
There are 2 known substitutes for 1225766: R804-3F, 61-713. Substitute compatibility should be verified for your specific system.
What is the NSN for 1225766?
1225766 is cataloged in the U.S. Government catalog under NSN 6105-00-556-8959. This indicates validated use in U.S. government and defense supply chains.
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