The MOTOR,DIRECT CURRENT is a GENERAL ELECTRIC COMPANY industrial component. Key specifications include TEMP RATING: 40.0 AMBIENT CELSIUS AND 50.0 OPERATING CELSIUS, KEYWAY DEPTH: 0.1250 INCHES NOMINAL SINGLE END IN, KEYWAY WIDTH: 0.2500 INCHES NOMINAL SINGLE END IN, POWER RATING: 7.5000 HORSEPOWER OUTPUT, WINDING TYPE: SHUNT WOUND W/COMMUTATING POLES, KEYWAY LENGTH: 2.7500 INCHES NOMINAL SINGLE END IN. This part is cataloged in the U.S.
Government catalog under NSN 6105-00-548-2016, 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
121D557
NSN:6105-00-548-2016 FSC:6105 — Motors, Electrical CAGE:24446 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
TEMP RATING
40.0 AMBIENT CELSIUS AND 50.0 OPERATING CELSIUS
KEYWAY DEPTH
0.1250 INCHES NOMINAL SINGLE END IN
KEYWAY WIDTH
0.2500 INCHES NOMINAL SINGLE END IN
POWER RATING
7.5000 HORSEPOWER OUTPUT
WINDING TYPE
SHUNT WOUND W/COMMUTATING POLES
KEYWAY LENGTH
2.7500 INCHES NOMINAL SINGLE END IN
OVERALL WIDTH
18.812 INCHES IN
COOLING METHOD
NATURAL CONVECTION VENTILATED
OVERALL HEIGHT
16.062 INCHES IN
OVERALL LENGTH
25.875 INCHES IN
SHAFT DIAMETER
1.2500 INCHES NOMINAL SINGLE END IN
MOUNTING METHOD
FIXED BASE
NSN
6105-00-548-2016
COMPONENT DIAGRAM
KEY FEATURES
•
KEYWAY DEPTH: 0.1250 INCHES NOMINAL SINGLE END IN
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 UNTHREADED HOLE(S)
•
DUTY CYCLE: CONTINUOUS
•
SHAFT DIAMETER: 1.2500 INCHES NOMINAL SINGLE END IN
•
SHAFT CENTER TO MOUNTING SURFACE DISTANCE: 7.000 INCHES SINGLE END IN
•
WINDING TYPE: SHUNT WOUND W/COMMUTATING POLES
•
MOUNTING METHOD: FIXED BASE
TECHNICAL CHARACTERISTICS
KEYWAY DEPTH
0.1250 INCHES NOMINAL SINGLE END IN
MOUNTING FACILITY TYPE AND QUANTITY
4 UNTHREADED HOLE(S)
DUTY CYCLE
CONTINUOUS
SHAFT DIAMETER
1.2500 INCHES NOMINAL SINGLE END IN
SHAFT CENTER TO MOUNTING SURFACE DISTANCE
7.000 INCHES SINGLE END IN
OVERALL LENGTH
25.875 INCHES IN
WINDING TYPE
SHUNT WOUND W/COMMUTATING POLES
MOUNTING METHOD
FIXED BASE
FRAME SIZE DESIGNATION
284
COOLING METHOD
NATURAL CONVECTION VENTILATED
OTHER ITEMS IN FSC 6105 — Motors, Electrical
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is 121D557?
121D557 is a MOTOR,DIRECT CURRENT manufactured by GENERAL ELECTRIC COMPANY.
What parts can replace 121D557?
There is 1 known substitute for 121D557: 5B284170. Substitute compatibility should be verified for your specific system.
What is the NSN for 121D557?
121D557 is cataloged in the U.S. Government catalog under NSN 6105-00-548-2016. This indicates validated use in U.S. government and defense supply chains.
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