PartsTable
Technical Data Sheet
121901LF ✓ 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, SQUARE, THREADED HOLE SINGLE ACTUATOR, pole_quantity: 1 SINGLE SECTION FRONT, terminal_type: TAB W/SCREW, shaft_diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN, throw_quantity: 2 SINGLE SECTION FRONT, special_features: CONTACT ARRANGEMENT DATA SPDT,/PERMANENT JUMPER/. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-334-8924, 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 121901LF
NSN: 5930-00-334-8924
FSC: 5930
CAGE: 82121 — ELECTRO SWITCH CORP. DBA ELECTRO SWITCH CORP (USA)
SPECIFICATIONS
shaft_typeROUND, SQUARE, THREADED HOLE SINGLE ACTUATOR
pole_quantity1 SINGLE SECTION FRONT
terminal_typeTAB W/SCREW
shaft_diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
throw_quantity2 SINGLE SECTION FRONT
special_featuresCONTACT ARRANGEMENT DATA SPDT,/PERMANENT JUMPER/
features_providedACTUATOR KNOB
knob_manufacturer_code04009
mounting_facility_patternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
contact_load_current_rating5.0 AMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL
individual_section_quantity1
contact_voltage_rating_in_volts125.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL
NSN5930-00-334-8924
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 121901LF MFR SWITCH,ROTARY
KEY FEATURES
THROW QUANTITY: 2 SINGLE SECTION FRONT
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS: 1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
TERMINAL TYPE: TAB W/SCREW
SHAFT TYPE: ROUND, SQUARE, THREADED HOLE SINGLE ACTUATOR
POLE QUANTITY: 1 SINGLE SECTION FRONT
SWITCH ACTUATOR POSITIONING INCREMENT: 90.0 DEGREES SINGLE ACTUATOR
KNOB MANUFACTURER CODE: 04009
FEATURES PROVIDED: ACTUATOR KNOB
TECHNICAL CHARACTERISTICS (FLIS)
THROW QUANTITY2 SINGLE SECTION FRONT
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
TERMINAL TYPETAB W/SCREW
SHAFT TYPEROUND, SQUARE, THREADED HOLE SINGLE ACTUATOR
POLE QUANTITY1 SINGLE SECTION FRONT
SWITCH ACTUATOR POSITIONING INCREMENT90.0 DEGREES SINGLE ACTUATOR
KNOB MANUFACTURER CODE04009
FEATURES PROVIDEDACTUATOR KNOB
LONGEST VERTICAL DISTANCE BETWEEN MOUNTING CENTERS1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
SPECIAL FEATURESCONTACT ARRANGEMENT DATA SPDT,/PERMANENT JUMPER/
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
QS300M80SInterchangeable
interchangeable cross-reference
interchangeable
816-19Interchangeable
interchangeable cross-reference
interchangeable
108750Interchangeable
interchangeable cross-reference
interchangeable
81619-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121901LF?
121901LF is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 121901LF?
There are 4 known substitutes for 121901LF: QS300M80S, 816-19, 108750 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121901LF?
121901LF is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-334-8924. This indicates validated use in U.S. government and defense supply chains.
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