PartsTable
Technical Data Sheet
PartsTable / MRO / 1SK3A4-2
1SK3A4-2 ✓ 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 terminal_type: TAB W/SCREW, overall_length: 3.406 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY, overall_diameter: 4.375 INCHES NOMINAL IN, style_designator: TAP, CIRCULAR, BUSHING MOUNT, features_provided: ACTUATOR KNOB AND METALLIC INCLOSURE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-296-5290, 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→ 1SK3A4-2
NSN: 5930-00-296-5290
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
terminal_typeTAB W/SCREW
overall_length3.406 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
overall_diameter4.375 INCHES NOMINAL IN
style_designatorTAP, CIRCULAR, BUSHING MOUNT
features_providedACTUATOR KNOB AND METALLIC INCLOSURE
knob_manufacturer_code10001
contact_switching_actionBREAKS BEFORE MAKES EACH SECTION FRONT
mounting_facility_patternTHREE POSITION CIRCULAR SINGLE MOUNTING FACILITY
contact_load_current_rating10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
individual_section_quantity3
specification/standard_data81349-MIL-S-15743/3 GOVERNMENT SPECIFICATION
NSN5930-00-296-5290
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 1SK3A4-2 MFR SWITCH,ROTARY
KEY FEATURES
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
MOUNTING FACILITY CIRCLE RADIUS: 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
OVERALL DIAMETER: 4.375 INCHES NOMINAL IN
•
CONTACT LOAD CURRENT RATING: 10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
•
MOUNTING METHOD: UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
•
INDIVIDUAL SECTION QUANTITY: 3
•
SPECIFICATION/STANDARD DATA: 81349-MIL-S-15743/3 GOVERNMENT SPECIFICATION
•
KNOB MANUFACTURER PART NUMBER: 9000-S6202-74000 PIECE 1
TECHNICAL CHARACTERISTICS (FLIS)
UNTHREADED MOUNTING HOLE DIAMETER0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
MOUNTING FACILITY CIRCLE RADIUS0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
OVERALL DIAMETER4.375 INCHES NOMINAL IN
CONTACT LOAD CURRENT RATING10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
MOUNTING METHODUNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
INDIVIDUAL SECTION QUANTITY3
SPECIFICATION/STANDARD DATA81349-MIL-S-15743/3 GOVERNMENT SPECIFICATION
KNOB MANUFACTURER PART NUMBER9000-S6202-74000 PIECE 1
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONWATERTIGHT
KNOB MANUFACTURER CODE10001
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
SYM 829.1Interchangeable
interchangeable cross-reference
interchangeable
1SR2C4A2Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-15743/3Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-15291/3Interchangeable
interchangeable cross-reference
interchangeable
3536B03G01Interchangeable
interchangeable cross-reference
interchangeable
1SR3A4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1SK3A4-2?
1SK3A4-2 is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1SK3A4-2?
There are 18 known substitutes for 1SK3A4-2: SYM 829.1, 1SR2C4A2, MIL-DTL-15743/3 and 15 more. Substitute compatibility should be verified for your specific system.
Is 1SK3A4-2 still available?
1SK3A4-2 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