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PartsTable / COMPONENT / 491009
491009 ✓ 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 SWITCH,INTERLOCK is a the manufacturer industrial component. Key specifications include hazard_protection_feature: DUST AND METAL FUMES AND MIST, terminal_type_and_quantity: 2 SCREW, nonpile-up_contact_arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT, maximum_voltage_rating_in_volts: 250.0 AC, contact_load_current_rating_at_maximum_rated_voltage: 5.000 AMPERES RESISTIVE AC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-237-7726, 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
491009
NSN: 5930-00-237-7726
FSC: 5930
CAGE: 99993 — DEPARTMENT OF THE NAVY (USA)
SPECIFICATIONS
hazard_protection_featureDUST AND METAL FUMES AND MIST
terminal_type_and_quantity2 SCREW
nonpile-up_contact_arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
maximum_voltage_rating_in_volts250.0 AC
contact_load_current_rating_at_maximum_rated_voltage5.000 AMPERES RESISTIVE AC
NSN5930-00-237-7726
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,INTERLOCK TITLE COMPONENT PN 491009 MFR SWITCH,INTERLOCK
KEY FEATURES
•
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 5.000 AMPERES RESISTIVE AC
•
TERMINAL TYPE AND QUANTITY: 2 SCREW
•
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
•
MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE5.000 AMPERES RESISTIVE AC
TERMINAL TYPE AND QUANTITY2 SCREW
NONPILE-UP CONTACT ARRANGEMENT1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
4600Interchangeable
interchangeable cross-reference
interchangeable
250DAInterchangeable
interchangeable cross-reference
interchangeable
4300Interchangeable
interchangeable cross-reference
interchangeable
PSI8031Interchangeable
interchangeable cross-reference
interchangeable
K7Interchangeable
interchangeable cross-reference
interchangeable
616363Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 491009?
491009 is a SWITCH,INTERLOCK.
What parts can replace 491009?
There are 19 known substitutes for 491009: 4600, 250DA, 4300 and 16 more. Substitute compatibility should be verified for your specific system.
Is 491009 still available?
491009 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026