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Technical Data Sheet
PartsTable / COMPONENT / 4-3A
4-3A ✓ 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 COVER,ELECTRICAL SWITCH is a the manufacturer industrial component. Key specifications include length: 10.000 FEET NOMINAL FT, material: ALUMINUM LOCATION NOT OTHERWISE SPECIFIED, body_style: THREADED BUSHING MOUNTED, body_width: 0.594 INCHES NOMINAL IN, shaft_type: ROUND SINGLE ACTUATOR, body_height: 1.563 INCHES NOMINAL 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 5930-00-170-8728, 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
4-3A
NSN: 5930-00-170-8728
FSC: 5930
CAGE: 70408 — AT AND T CORP (USA)
SPECIFICATIONS
length10.000 FEET NOMINAL FT
materialALUMINUM LOCATION NOT OTHERWISE SPECIFIED
body_styleTHREADED BUSHING MOUNTED
body_width0.594 INCHES NOMINAL IN
shaft_typeROUND SINGLE ACTUATOR
body_height1.563 INCHES NOMINAL IN
body_length2.625 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
shaft_length2.250 INCHES NOMINAL SINGLE ACTUATOR IN
thread_class2A A
usage_designINTERMEDIATE ARCH
pole_quantity2 EACH SECTION FRONT
NSN5930-00-170-8728
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,ELECTRICAL SWITCH TITLE COMPONENT PN 4-3A MFR COVER,ELECTRICAL SWITC
KEY FEATURES
•
BODY LENGTH: 2.625 INCHES NOMINAL IN
•
MATERIAL: PLASTIC PHENOL FORMALDEHYDE (PMO)
•
BODY HEIGHT: 1.563 INCHES NOMINAL IN
•
BODY WIDTH: 0.594 INCHES NOMINAL IN
•
MOUNTING CONFIGURATION: FRICTION MOUNTED
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH2.625 INCHES NOMINAL IN
MATERIALPLASTIC PHENOL FORMALDEHYDE (PMO)
BODY HEIGHT1.563 INCHES NOMINAL IN
END ITEM IDENTIFICATIONPART NO. 573A A
BODY WIDTH0.594 INCHES NOMINAL IN
MOUNTING CONFIGURATIONFRICTION MOUNTED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
573AInterchangeable
interchangeable cross-reference
interchangeable
573BInterchangeable
interchangeable cross-reference
interchangeable
573ACAPACIT0RInterchangeable
interchangeable cross-reference
interchangeable
12Z12139-93Interchangeable
interchangeable cross-reference
interchangeable
M5501/7-F47Interchangeable
interchangeable cross-reference
interchangeable
T-43AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-3A?
4-3A is a COVER,ELECTRICAL SWITCH.
What parts can replace 4-3A?
There are 16 known substitutes for 4-3A: 573A, 573B, 573ACAPACIT0R and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-3A?
4-3A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-170-8728. 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