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Technical Data Sheet
123903LL ✓ 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, FLATTED, THREADED HOLE SINGLE ACTUATOR, flat_height: 0.312 INCHES NOMINAL SINGLE ACTUATOR IN, shaft_length: 1.188 INCHES NOMINAL SINGLE ACTUATOR IN, overall_width: 4.125 INCHES NOMINAL IN, terminal_type: TAB W/SCREW, overall_height: 4.125 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 5930-00-618-8602, 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 123903LL
NSN: 5930-00-618-8602
FSC: 5930
CAGE: 82121 — ELECTRO SWITCH CORP. DBA ELECTRO SWITCH CORP (USA)
SPECIFICATIONS
shaft_typeROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR
flat_height0.312 INCHES NOMINAL SINGLE ACTUATOR IN
shaft_length1.188 INCHES NOMINAL SINGLE ACTUATOR IN
overall_width4.125 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
overall_height4.125 INCHES NOMINAL IN
overall_length4.188 INCHES NOMINAL IN
shaft_diameter0.375 INCHES NOMINAL SINGLE ACTUATOR IN
special_featuresSHAFT IS RD,FLATTED,THD HOLE AND PIN TYPE
features_providedACTUATOR KNOB
first_flat_length0.500 INCHES NOMINAL SINGLE ACTUATOR IN
nominal_thread_size0.250 INCHES SINGLE MOUNTING FACILITY IN
NSN5930-00-618-8602
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 123903LL MFR SWITCH,ROTARY
KEY FEATURES
FEATURES PROVIDED: ACTUATOR KNOB
SHAFT TYPE: ROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR
SWITCH ACTUATOR INDEXING POSITION QUANTITY: 4 SINGLE ACTUATOR
TERMINAL TYPE: TAB W/SCREW
FLAT HEIGHT: 0.312 INCHES NOMINAL SINGLE ACTUATOR IN
NOMINAL THREAD SIZE: 0.250 INCHES SINGLE MOUNTING FACILITY IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.188 INCHES NOMINAL IN
FEATURES PROVIDEDACTUATOR KNOB
SHAFT TYPEROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR
SWITCH ACTUATOR INDEXING POSITION QUANTITY4 SINGLE ACTUATOR
TERMINAL TYPETAB W/SCREW
OVERALL HEIGHT4.125 INCHES NOMINAL IN
FLAT HEIGHT0.312 INCHES NOMINAL SINGLE ACTUATOR IN
NOMINAL THREAD SIZE0.250 INCHES SINGLE MOUNTING FACILITY IN
CONTACT VOLTAGE RATING IN VOLTS500.0 AC AT SEA LEVEL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
200311Interchangeable
interchangeable cross-reference
interchangeable
101017-E01Interchangeable
interchangeable cross-reference
interchangeable
MS35436-10Interchangeable
interchangeable cross-reference
interchangeable
4250-020-38Interchangeable
interchangeable cross-reference
interchangeable
503F-50Interchangeable
interchangeable cross-reference
interchangeable
82048Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 123903LL?
123903LL is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 123903LL?
There are 11 known substitutes for 123903LL: 200311, 101017-E01, MS35436-10 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 123903LL?
123903LL is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-618-8602. This indicates validated use in U.S. government and defense supply chains.
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