PartsTable
Technical Data Sheet
1HDG ✓ Verified by PartsTable
· COMPONENT
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

SYNCHRO,DIFFERENTIAL TRANSMITTER. Key specifications include length: 0.0550 INCHES NOMINAL SHOULDER IN, body_size: 23, body_style: STANDARD ROUND, REAR MOUNTING FLANGE, shaft_type: ROUND, TAPERED, THREADED, UNDERCUT SINGLE SHAFT, pilot_length: 0.1250 INCHES NOMINAL IN, shaft_length: 0.3850 INCHES NOMINAL SINGLE SHAFT IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5990-00-644-0090, 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
1HDG
NSN: 5990-00-644-0090
FSC: 5990
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
length0.0550 INCHES NOMINAL SHOULDER IN
body_size23
body_styleSTANDARD ROUND, REAR MOUNTING FLANGE
shaft_typeROUND, TAPERED, THREADED, UNDERCUT SINGLE SHAFT
pilot_length0.1250 INCHES NOMINAL IN
shaft_length0.3850 INCHES NOMINAL SINGLE SHAFT IN
body_diameter2.2300 INCHES NOMINAL IN
body_materialALUMINUM
overall_length4.2000 INCHES MAXIMUM IN
pilot_diameter1.0625 INCHES NOMINAL IN
shaft_diameter0.1820 INCHES NOMINAL SINGLE SHAFT IN
flange_diameter2.2480 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
NSN5990-00-644-0090
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SYNCHRO,DIFFERENTIAL TRANSMITTER TITLE COMPONENT PN 1HDG MFR SYNCHRO,DIFFERENTIAL T
KEY FEATURES
SECOND SHOULDER LENGTH: 0.0250 INCHES NOMINAL IN
BODY DIAMETER: 2.2300 INCHES NOMINAL IN
FLANGE DIAMETER: 2.2480 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
FLANGE THICKNESS: 0.2500 INCHES NOMINAL IN
PILOT DIAMETER: 1.0625 INCHES NOMINAL IN
BODY STYLE: STANDARD ROUND, REAR MOUNTING FLANGE
SHOULDER DIAMETER: 1.2500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SECOND SHOULDER LENGTH0.0250 INCHES NOMINAL IN
BODY DIAMETER2.2300 INCHES NOMINAL IN
FLANGE DIAMETER2.2480 INCHES MINIMUM AND 2.2500 INCHES MAXIMUM IN
FLANGE THICKNESS0.2500 INCHES NOMINAL IN
OVERALL LENGTH4.2000 INCHES MAXIMUM IN
PILOT DIAMETER1.0625 INCHES NOMINAL IN
BODY STYLESTANDARD ROUND, REAR MOUNTING FLANGE
SHOULDER DIAMETER1.2500 INCHES NOMINAL IN
SECOND SHOULDER DIAMETER1.9500 INCHES NOMINAL IN
LENGTH0.0550 INCHES NOMINAL SHOULDER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
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 1HDG?
1HDG is a SYNCHRO,DIFFERENTIAL TRANSMITTER.
What parts can replace 1HDG?
There are 33 known substitutes for 1HDG: VCT37-6J4, 173108, SK107606 and 30 more. Substitute compatibility should be verified for your specific system.
Is 1HDG still available?
1HDG is currently cancelled.
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