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4-2556-520 — SWITCH SECTION,ROTARY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4-2556-520: SWITCH SECTION,ROTARY.

The SWITCH SECTION,ROTARY is a the manufacturer industrial component. Key specifications include overall_width: 1.422 INCHES MAXIMUM IN, terminal_type: TAB, SOLDER LUG, overall_height: 1.578 INCHES MAXIMUM IN, mounting_method: STRUT SINGLE MOUNTING FACILITY, style_designator: SWITCH SECTION, ROTARY, precious_material: SILVER. This part is cataloged in the U.S.

Government catalog under NSN 5930-01-048-7549, 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
4-2556-520
NSN: 5930-01-048-7549
FSC: 5930 — Switches
CAGE: 79692 — ELECTRO SWITCH CORP DIV ELECTROSWITCH (USA)
SPECIFICATIONS
overall_width1.422 INCHES MAXIMUM IN
terminal_typeTAB, SOLDER LUG
overall_height1.578 INCHES MAXIMUM IN
mounting_methodSTRUT SINGLE MOUNTING FACILITY
style_designatorSWITCH SECTION, ROTARY
precious_materialSILVER
contact_load_current_rating340.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL
switch_contact_basic_designNONPILE-UP NONSYMMETRICAL
precious_material_and_locationTERMINALS AND CONTACT SURFACES SILVER
contact_voltage_rating_in_volts115.0 AC AT SEA LEVEL
NSN5930-01-048-7549
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH SECTION,ROTARY TITLE COMPONENT PN 4-2556-520 MFR SWITCH SECTION,ROTARY
KEY FEATURES
•
SWITCH CONTACT BASIC DESIGN: NONPILE-UP NONSYMMETRICAL
•
TERMINAL TYPE: TAB, SOLDER LUG
•
PRECIOUS MATERIAL: SILVER
•
CONTACT LOAD CURRENT RATING: 450.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
•
MOUNTING METHOD: STRUT SINGLE MOUNTING FACILITY
•
STYLE DESIGNATOR: SWITCH SECTION, ROTARY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.578 INCHES MAXIMUM IN
SWITCH CONTACT BASIC DESIGNNONPILE-UP NONSYMMETRICAL
TERMINAL TYPETAB, SOLDER LUG
PRECIOUS MATERIALSILVER
CONTACT LOAD CURRENT RATING450.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
CONTACT LOAD CURRENT RATING340.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL
MOUNTING METHODSTRUT SINGLE MOUNTING FACILITY
STYLE DESIGNATORSWITCH SECTION, ROTARY
OVERALL WIDTH1.422 INCHES MAXIMUM IN
CONTACT VOLTAGE RATING IN VOLTS115.0 AC AT SEA LEVEL
SUBSTITUTES & CROSS-REFERENCES 2
269-2358-00Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
50143Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-2556-520?
4-2556-520 is a SWITCH SECTION,ROTARY.
What parts can replace 4-2556-520?
There are 2 known substitutes for 4-2556-520: 269-2358-00, 50143. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-2556-520?
4-2556-520 is cataloged in the U.S. Government catalog under NSN 5930-01-048-7549. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.