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A403B4 — SWITCH,PUSH

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A403B4: SWITCH,PUSH.

The SWITCH,PUSH is a the manufacturer industrial component. Key specifications include body_style: BUSHING MOUNTED, body_length: 0.844 INCHES NOMINAL IN, body_diameter: 0.750 INCHES NOMINAL IN, actuator_style: RECTANGULAR, bushing_length: 0.500 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-508-4609, 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
A403B4
NSN: 5930-00-508-4609
FSC: 5930 — Switches
CAGE: 81640 — SAFRAN POWER USA, LLC (USA)
SPECIFICATIONS
body_styleBUSHING MOUNTED
body_length0.844 INCHES NOMINAL IN
body_diameter0.750 INCHES NOMINAL IN
actuator_styleRECTANGULAR
bushing_length0.500 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_length0.188 INCHES NOMINAL IN
actuator_diameter0.375 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
thread_quantity_per_inch27
thread_series_designatorUNS
terminal_type_and_quantity4 SCREW
NSN5930-00-508-4609
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PUSH TITLE COMPONENT PN A403B4 MFR SWITCH,PUSH
KEY FEATURES
•
BODY STYLE: BUSHING MOUNTED
•
ACTUATOR STYLE: RECTANGULAR
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
BODY LENGTH: 0.844 INCHES NOMINAL IN
•
ACTUATOR LENGTH: 0.188 INCHES NOMINAL IN
•
NONPILE-UP CONTACT ARRANGEMENT: 1 TWO CIRCUIT, DOUBLE BREAK/DOUBLE MAKE, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
•
MAXIMUM VOLTAGE RATING IN VOLTS: 230.0 AC
•
THREAD QUANTITY PER INCH: 27
TECHNICAL CHARACTERISTICS
BODY STYLEBUSHING MOUNTED
ACTUATOR STYLERECTANGULAR
NOMINAL THREAD SIZE0.625 INCHES IN
BODY LENGTH0.844 INCHES NOMINAL IN
ACTUATOR LENGTH0.188 INCHES NOMINAL IN
NONPILE-UP CONTACT ARRANGEMENT1 TWO CIRCUIT, DOUBLE BREAK/DOUBLE MAKE, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
MAXIMUM VOLTAGE RATING IN VOLTS230.0 AC
THREAD QUANTITY PER INCH27
TERMINAL TYPE AND QUANTITY4 SCREW
BUSHING LENGTH0.500 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
SUBSTITUTES & CROSS-REFERENCES 1
G221604-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A403B4?
A403B4 is a SWITCH,PUSH.
What parts can replace A403B4?
There is 1 known substitute for A403B4: G221604-1. Substitute compatibility should be verified for your specific system.
What is the NSN for A403B4?
A403B4 is cataloged in the U.S. Government catalog under NSN 5930-00-508-4609. 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.