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108B2A — SYNCHRO,CONTROL TRANSFORMER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

108B2A: SYNCHRO,CONTROL TRANSFORMER.

The SYNCHRO,CONTROL TRANSFORMER is a the manufacturer industrial component. Key specifications include body_size: 18, shaft_type: SPLINE SINGLE SHAFT, shaft_length: 0.5500 INCHES NOMINAL SINGLE SHAFT IN, overall_length: 2.5630 INCHES NOMINAL IN, shaft_diameter: 0.1850 INCHES NOMINAL SINGLE SHAFT IN, frequency_in_hertz: 400.0 NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5990-00-503-2846, 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
108B2A
NSN: 5990-00-503-2846
FSC: 5990 — Synchros and Resolvers
CAGE: 95542 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
body_size18
shaft_typeSPLINE SINGLE SHAFT
shaft_length0.5500 INCHES NOMINAL SINGLE SHAFT IN
overall_length2.5630 INCHES NOMINAL IN
shaft_diameter0.1850 INCHES NOMINAL SINGLE SHAFT IN
frequency_in_hertz400.0 NOMINAL
spline_tooth_quantity21 SINGLE SHAFT
rotor_input_current_rating108.0 MILLIAMPERES NOMINAL
terminal_type_and_quantity5 SCREW
spline_tooth_diametral_pitch120 SINGLE SHAFT
torque_gradient_per_angular_deg0.100 INCH-OUNCES NOMINAL IN
rotor_input_electrical_power_rating1.3 WATTS NOMINAL
NSN5990-00-503-2846
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SYNCHRO,CONTROL TRANSFORMER TITLE COMPONENT PN 108B2A MFR SYNCHRO,CONTROL TRANSF
KEY FEATURES
•
BODY SIZE: 18
•
SHAFT TYPE: SPLINE SINGLE SHAFT
•
SHAFT DIAMETER: 0.1850 INCHES NOMINAL SINGLE SHAFT IN
•
TORQUE GRADIENT PER ANGULAR DEG: 0.100 INCH-OUNCES NOMINAL IN
•
ROTOR INPUT ELECTRICAL POWER RATING: 1.3 WATTS NOMINAL
•
SPLINE TOOTH QUANTITY: 21 SINGLE SHAFT
•
FREQUENCY IN HERTZ: 400.0 NOMINAL
TECHNICAL CHARACTERISTICS
BODY SIZE18
SHAFT TYPESPLINE SINGLE SHAFT
SHAFT DIAMETER0.1850 INCHES NOMINAL SINGLE SHAFT IN
TORQUE GRADIENT PER ANGULAR DEG0.100 INCH-OUNCES NOMINAL IN
ROTOR INPUT ELECTRICAL POWER RATING1.3 WATTS NOMINAL
SPLINE TOOTH QUANTITY21 SINGLE SHAFT
OVERALL LENGTH2.5630 INCHES NOMINAL IN
FREQUENCY IN HERTZ400.0 NOMINAL
ROTOR INPUT VOLTAGE RATING IN VOLTS115.0 NOMINAL
SHAFT LENGTH0.5500 INCHES NOMINAL SINGLE SHAFT IN
SUBSTITUTES & CROSS-REFERENCES 2
RP490-56Reference document
Same NSN cross-reference
Reference document — Secondary reference
18CX4ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 108B2A?
108B2A is a SYNCHRO,CONTROL TRANSFORMER.
What parts can replace 108B2A?
There are 2 known substitutes for 108B2A: RP490-56, 18CX4A. Substitute compatibility should be verified for your specific system.
What is the NSN for 108B2A?
108B2A is cataloged in the U.S. Government catalog under NSN 5990-00-503-2846. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.