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A5539 ✓ 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 RETAINER,ELECTRICAL SWITCH is a the manufacturer industrial component. Key specifications include special_features: STAINLESS STEEL,0.750 IN. LG,0.751 IN.

H,TWO 0.104 IN. DIA HOLES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-678-0875, 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
A5539
NSN: 5930-00-678-0875
FSC: 5930
CAGE: 96429 — WESTPORT INTERNATIONAL, INC. (USA)
SPECIFICATIONS
special_featuresSTAINLESS STEEL,0.750 IN. LG,0.751 IN. H,TWO 0.104 IN. DIA HOLES IN
NSN5930-00-678-0875
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RETAINER,ELECTRICAL SWITCH TITLE COMPONENT PN A5539 MFR RETAINER,ELECTRICAL SW
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSTAINLESS STEEL,0.750 IN. LG,0.751 IN. H,TWO 0.104 IN. DIA HOLES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
550039Interchangeable
interchangeable cross-reference
interchangeable
7755616P024Interchangeable
interchangeable cross-reference
interchangeable
3514-12Interchangeable
interchangeable cross-reference
interchangeable
17-058Interchangeable
interchangeable cross-reference
interchangeable
550-339Interchangeable
interchangeable cross-reference
interchangeable
112FW123-1R1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A5539?
A5539 is a RETAINER,ELECTRICAL SWITCH.
What parts can replace A5539?
There are 10 known substitutes for A5539: 550039, 7755616P024, 3514-12 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A5539?
A5539 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-678-0875. 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