PartsTable
Technical Data Sheet
PartsTable / MRO / 1HG
1HG ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SYNCHRO,CONTROL TRANSFORMER is a the manufacturer industrial component. Key specifications include end_item_identification: AUTOMATED RADIOTHEODOLITE SYSTEM, (ART-1, 1R, 2, 2R). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5990-00-636-4149, 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
MRO→ MRO_GENERAL→ 1HG
NSN: 5990-00-636-4149
FSC: 5990
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
end_item_identificationAUTOMATED RADIOTHEODOLITE SYSTEM, (ART-1, 1R, 2, 2R)
NSN5990-00-636-4149
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SYNCHRO,CONTROL TRANSFORMER TITLE COMPONENT PN 1HG MFR SYNCHRO,CONTROL TRANSF
KEY FEATURES
•
BODY STYLE: STANDARD ROUND, REAR MOUNTING FLANGE
•
SHOULDER DIAMETER: 1.0620 INCHES MINIMUM AND 1.0630 INCHES MAXIMUM IN
•
FLANGE THICKNESS: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 2.2500 INCHES MAXIMUM IN
•
SECOND SHOULDER DIAMETER: 1.2400 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM IN
•
BODY DIAMETER: 1.9400 INCHES MINIMUM AND 1.9600 INCHES MAXIMUM IN
•
PILOT DIAMETER: 0.6800 INCHES MINIMUM AND 0.7000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLESTANDARD ROUND, REAR MOUNTING FLANGE
SHOULDER DIAMETER1.0620 INCHES MINIMUM AND 1.0630 INCHES MAXIMUM IN
FLANGE THICKNESS0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
FLANGE DIAMETER2.2500 INCHES MAXIMUM IN
OVERALL LENGTH4.2000 INCHES MAXIMUM IN
SECOND SHOULDER DIAMETER1.2400 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM IN
BODY DIAMETER1.9400 INCHES MINIMUM AND 1.9600 INCHES MAXIMUM IN
PILOT DIAMETER0.6800 INCHES MINIMUM AND 0.7000 INCHES MAXIMUM IN
SECOND SHOULDER LENGTH0.1400 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN
SHAFT THREAD LENGTH0.1500 INCHES NOMINAL SINGLE SHAFT IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
VCT37-6J4Interchangeable
interchangeable cross-reference
interchangeable
173108Interchangeable
interchangeable cross-reference
interchangeable
SK107606Interchangeable
interchangeable cross-reference
interchangeable
1357620Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-2335Interchangeable
interchangeable cross-reference
interchangeable
213403Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1HG?
1HG is a SYNCHRO,CONTROL TRANSFORMER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1HG?
There are 34 known substitutes for 1HG: VCT37-6J4, 173108, SK107606 and 31 more. Substitute compatibility should be verified for your specific system.
Is 1HG still available?
1HG is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026