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PartsTable / COMPONENT / A91-430900
A91-430900 ✓ 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 RELAY ASSEMBLY is a the manufacturer industrial component. Key specifications include relay_type: AUXILIARY, overall_depth: 6.000 INCHES NOMINAL IN, overall_width: 1.500 INCHES NOMINAL IN, overall_height: 5.600 INCHES NOMINAL IN, mounting_facility: PANEL, controlling_agency: WESCOM,INC.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-090-1420, 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
A91-430900
NSN: 5945-01-090-1420
FSC: 5945
CAGE: 74861 — CHARLES INDUSTRIES, LLC DIV TELECOM (USA)
SPECIFICATIONS
relay_typeAUXILIARY
overall_depth6.000 INCHES NOMINAL IN
overall_width1.500 INCHES NOMINAL IN
overall_height5.600 INCHES NOMINAL IN
mounting_facilityPANEL
controlling_agencyWESCOM,INC.
identifying_number4309 PART NO.
individual_relay_quantity5
NSN5945-01-090-1420
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY ASSEMBLY TITLE COMPONENT PN A91-430900 MFR RELAY ASSEMBLY
KEY FEATURES
•
CONTROLLING AGENCY: WESCOM,INC.
•
INDIVIDUAL RELAY QUANTITY: 5
•
RELAY TYPE: AUXILIARY
•
IDENTIFYING NUMBER: 4309 PART NO.
•
MOUNTING FACILITY: PANEL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT5.600 INCHES NOMINAL IN
CONTROLLING AGENCYWESCOM,INC.
INDIVIDUAL RELAY QUANTITY5
RELAY TYPEAUXILIARY
IDENTIFYING NUMBER4309 PART NO.
MOUNTING FACILITYPANEL
OVERALL WIDTH1.500 INCHES NOMINAL IN
OVERALL DEPTH6.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
309GInterchangeable
interchangeable cross-reference
interchangeable
954137Interchangeable
interchangeable cross-reference
interchangeable
603T2Interchangeable
interchangeable cross-reference
interchangeable
4309Interchangeable
interchangeable cross-reference
interchangeable
664649Interchangeable
interchangeable cross-reference
interchangeable
W1 1-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A91-430900?
A91-430900 is a RELAY ASSEMBLY.
What parts can replace A91-430900?
There are 18 known substitutes for A91-430900: 309G, 954137, 603T2 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A91-430900?
A91-430900 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-090-1420. 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