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Technical Data Sheet
PartsTable / COMPONENT / 740559-103
740559-103 ✓ 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 SWITCH ASSEMBLY is a the manufacturer industrial component. Key specifications include switch_type: ROTARY, overall_width: 1.600 INCHES MAXIMUM IN, overall_height: 2.450 INCHES NOMINAL IN, overall_length: 4.100 INCHES MAXIMUM IN, controlling_agency: LOCKHEED- CALIFORNIA COMPANY, identifying_number: 740559 DRAWING NO.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-329-7818, 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
740559-103
NSN: 5930-01-329-7818
FSC: 5930
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
switch_typeROTARY
overall_width1.600 INCHES MAXIMUM IN
overall_height2.450 INCHES NOMINAL IN
overall_length4.100 INCHES MAXIMUM IN
controlling_agencyLOCKHEED- CALIFORNIA COMPANY
identifying_number740559 DRAWING NO.
individual_switch_quantity2
NSN5930-01-329-7818
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH ASSEMBLY TITLE COMPONENT PN 740559-103 MFR SWITCH ASSEMBLY
KEY FEATURES
•
IDENTIFYING NUMBER: 740559 DRAWING NO.
•
SWITCH TYPE: ROTARY
•
INDIVIDUAL SWITCH QUANTITY: 2
•
CONTROLLING AGENCY: LOCKHEED- CALIFORNIA COMPANY
TECHNICAL CHARACTERISTICS (FLIS)
IDENTIFYING NUMBER740559 DRAWING NO.
SWITCH TYPEROTARY
INDIVIDUAL SWITCH QUANTITY2
CONTROLLING AGENCYLOCKHEED- CALIFORNIA COMPANY
OVERALL HEIGHT2.450 INCHES NOMINAL IN
OVERALL WIDTH1.600 INCHES MAXIMUM IN
OVERALL LENGTH4.100 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
20343-1Interchangeable
interchangeable cross-reference
interchangeable
20343Interchangeable
interchangeable cross-reference
interchangeable
4564758-1Interchangeable
interchangeable cross-reference
interchangeable
162A375-2Interchangeable
interchangeable cross-reference
interchangeable
1181-201PCG3Interchangeable
interchangeable cross-reference
interchangeable
1182-382PCL3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 740559-103?
740559-103 is a SWITCH ASSEMBLY.
What parts can replace 740559-103?
There are 9 known substitutes for 740559-103: 20343-1, 20343, 4564758-1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 740559-103?
740559-103 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-329-7818. 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