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B81A0003 — SYNCHRO,CONTROL TRANSFORMER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B81A0003: SYNCHRO,CONTROL TRANSFORMER.

The SYNCHRO,CONTROL TRANSFORMER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, body_style: STANDARD ROUND A, shaft_type: ROUND, SLOTTED SINGLE SHAFT, pilot_length: 0.0430 INCHES NOMINAL IN, shaft_length: 0.5430 INCHES NOMINAL SINGLE SHAFT IN, overall_length: 2.1210 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5990-00-050-1668, 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
B81A0003
NSN: 5990-00-050-1668
FSC: 5990 — Synchros and Resolvers
CAGE: 12464 — MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
body_size8
body_styleSTANDARD ROUND A
shaft_typeROUND, SLOTTED SINGLE SHAFT
pilot_length0.0430 INCHES NOMINAL IN
shaft_length0.5430 INCHES NOMINAL SINGLE SHAFT IN
overall_length2.1210 INCHES NOMINAL IN
pilot_diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
shaft_diameter0.0880 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN
undercut_width0.0620 INCHES NOMINAL IN
flange_diameter0.7500 INCHES NOMINAL IN
flange_thickness0.0620 INCHES NOMINAL IN
NSN5990-00-050-1668
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SYNCHRO,CONTROL TRANSFORMER TITLE COMPONENT PN B81A0003 MFR SYNCHRO,CONTROL TRANSF
KEY FEATURES
•
BODY SIZE: 8
•
SHAFT TYPE: ROUND, SLOTTED SINGLE SHAFT
•
FLANGE DIAMETER: 0.7500 INCHES NOMINAL IN
•
UNDERCUT WIDTH: 0.0620 INCHES NOMINAL IN
•
SHAFT DIAMETER: 0.0880 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN
•
ROTOR DC RESISTANCE IN OHMS: 550.00 NOMINAL
•
UNDERCUT DIAMETER: 0.6910 INCHES NOMINAL IN
•
FRAGILITY FACTOR: MODERATELY RUGGED
TECHNICAL CHARACTERISTICS
BODY SIZE8
SHAFT TYPEROUND, SLOTTED SINGLE SHAFT
FLANGE DIAMETER0.7500 INCHES NOMINAL IN
UNDERCUT WIDTH0.0620 INCHES NOMINAL IN
SHAFT DIAMETER0.0880 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM SINGLE SHAFT IN
ROTOR DC RESISTANCE IN OHMS550.00 NOMINAL
UNDERCUT DIAMETER0.6910 INCHES NOMINAL IN
FRAGILITY FACTORMODERATELY RUGGED
BODY STYLESTANDARD ROUND A
FLANGE THICKNESS0.0620 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
AY080CD45A1Reference document
Same NSN cross-reference
Reference document — Secondary reference
193149-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 B81A0003?
B81A0003 is a SYNCHRO,CONTROL TRANSFORMER.
What parts can replace B81A0003?
There are 2 known substitutes for B81A0003: AY080CD45A1, 193149-2. Substitute compatibility should be verified for your specific system.
What is the NSN for B81A0003?
B81A0003 is cataloged in the U.S. Government catalog under NSN 5990-00-050-1668. 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.