PartsTable
Technical Data Sheet
123903MH ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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,ROTARY is a the manufacturer industrial component. Key specifications include shaft_type: ROUND SINGLE ACTUATOR, shaft_length: 0.500 INCHES NOMINAL SINGLE ACTUATOR IN, terminal_type: TAB W/SCREW, shaft_diameter: 0.375 INCHES NOMINAL SINGLE ACTUATOR IN, mounting_method: THREADED HOLE(S) SINGLE MOUNTING FACILITY, features_provided: ACTUATOR KNOB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-642-9144, 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
MRO MRO_GENERAL 123903MH
NSN: 5930-00-642-9144
FSC: 5930
CAGE: 82121 — ELECTRO SWITCH CORP. DBA ELECTRO SWITCH CORP (USA)
SPECIFICATIONS
shaft_typeROUND SINGLE ACTUATOR
shaft_length0.500 INCHES NOMINAL SINGLE ACTUATOR IN
terminal_typeTAB W/SCREW
shaft_diameter0.375 INCHES NOMINAL SINGLE ACTUATOR IN
mounting_methodTHREADED HOLE(S) SINGLE MOUNTING FACILITY
features_providedACTUATOR KNOB
nominal_thread_size0.250 INCHES SINGLE MOUNTING FACILITY IN
thread_quantity_per_inch20 SINGLE MOUNTING FACILITY
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
mounting_facility_patternFOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY
contact_load_current_rating30.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
individual_section_quantity4
NSN5930-00-642-9144
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 123903MH MFR SWITCH,ROTARY
KEY FEATURES
INDIVIDUAL SECTION QUANTITY: 4
MOUNTING METHOD: THREADED HOLE(S) SINGLE MOUNTING FACILITY
SWITCH ACTUATOR INDEXING POSITION QUANTITY: 2 SINGLE ACTUATOR
CONTACT LOAD CURRENT RATING: 30.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
MOUNTING FACILITY CIRCLE RADIUS: 3.219 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SHAFT DIAMETER: 0.375 INCHES NOMINAL SINGLE ACTUATOR IN
SWITCH ACTUATOR POSITIONING INCREMENT: 90.0 DEGREES SINGLE ACTUATOR
CONTACT VOLTAGE RATING IN VOLTS: 250.0 DC AT SEA LEVEL
TECHNICAL CHARACTERISTICS (FLIS)
INDIVIDUAL SECTION QUANTITY4
MOUNTING METHODTHREADED HOLE(S) SINGLE MOUNTING FACILITY
SWITCH ACTUATOR INDEXING POSITION QUANTITY2 SINGLE ACTUATOR
CONTACT LOAD CURRENT RATING30.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
MOUNTING FACILITY CIRCLE RADIUS3.219 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SHAFT DIAMETER0.375 INCHES NOMINAL SINGLE ACTUATOR IN
SWITCH ACTUATOR POSITIONING INCREMENT90.0 DEGREES SINGLE ACTUATOR
CONTACT VOLTAGE RATING IN VOLTS250.0 DC AT SEA LEVEL
SHAFT TYPEROUND SINGLE ACTUATOR
SWITCH CONTACT BASIC DESIGNNONPILE-UP SYMMETRICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
88-6-6-92 A.H.Interchangeable
interchangeable cross-reference
interchangeable
NON24-274Interchangeable
interchangeable cross-reference
interchangeable
A6040Interchangeable
interchangeable cross-reference
interchangeable
6202-3105137PC22Interchangeable
Same NIIN cross-reference
interchangeable
A2530PC13Interchangeable
Same NIIN cross-reference
interchangeable
6202-3105136PC16Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 123903MH?
123903MH is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 123903MH?
There are 10 known substitutes for 123903MH: 88-6-6-92 A.H., NON24-274, A6040 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 123903MH?
123903MH is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-642-9144. This indicates validated use in U.S. government and defense supply chains.
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