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1783740 ✓ 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

The GEAR SECTOR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_radius: 3.7500 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES, style_designator: PROTRUDING HUB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-573-9049, 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
1783740
NSN: 3020-00-573-9049
FSC: 3020
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
pitch_radius3.7500 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
style_designatorPROTRUDING HUB
hub_style_designatorPLAIN FIRST END
bore_nominal_diameter0.563 INCHES BOTH ENDS IN
nominal_outside_radius3.781 INCHES IN
NSN3020-00-573-9049
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR SECTOR,SPUR TITLE COMPONENT PN 1783740 MFR GEAR SECTOR,SPUR
KEY FEATURES
•
TOOTH FORM: STANDARD
•
HUB STYLE DESIGNATOR: PLAIN FIRST END
•
STYLE DESIGNATOR: PROTRUDING HUB
•
BORE STYLE: PLAIN BOTH ENDS
•
PITCH RADIUS: 3.7500 INCHES NOMINAL IN
•
BORE NOMINAL DIAMETER: 0.563 INCHES BOTH ENDS IN
•
PRESSURE ANGLE: 14.5000 DEGREES
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
TOOTH FORMSTANDARD
HUB STYLE DESIGNATORPLAIN FIRST END
STYLE DESIGNATORPROTRUDING HUB
BORE STYLEPLAIN BOTH ENDS
PITCH RADIUS3.7500 INCHES NOMINAL IN
BORE NOMINAL DIAMETER0.563 INCHES BOTH ENDS IN
PRESSURE ANGLE14.5000 DEGREES
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE RADIUS3.781 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
13409-1Interchangeable
interchangeable cross-reference
interchangeable
70007Interchangeable
interchangeable cross-reference
interchangeable
1308620Interchangeable
interchangeable cross-reference
interchangeable
134090Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1783740?
1783740 is a GEAR SECTOR,SPUR.
What parts can replace 1783740?
There are 4 known substitutes for 1783740: 13409-1, 70007, 1308620 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1783740?
1783740 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-573-9049. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026