PartsTable
Technical Data Sheet
PartsTable / MRO / 20SR3B4
20SR3B4 ✓ 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: 0.625 INCHES NOMINAL SINGLE ACTUATOR IN, overall_width: 6.750 INCHES NOMINAL IN, terminal_type: TAB W/SCREW, overall_height: 9.500 INCHES NOMINAL IN, shaft_diameter: 0.625 INCHES NOMINAL SINGLE ACTUATOR 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 5930-00-548-7944, 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→ 20SR3B4
NSN: 5930-00-548-7944
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
shaft_typeROUND SINGLE ACTUATOR
shaft_length0.625 INCHES NOMINAL SINGLE ACTUATOR IN
overall_width6.750 INCHES NOMINAL IN
terminal_typeTAB W/SCREW
overall_height9.500 INCHES NOMINAL IN
shaft_diameter0.625 INCHES NOMINAL SINGLE ACTUATOR IN
mounting_methodBASE SINGLE MOUNTING FACILITY
features_providedMETALLIC INCLOSURE
contact_switching_actionBREAKS BEFORE MAKES EACH SECTION FRONT
mounting_facility_patternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
contact_load_current_rating200.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
individual_section_quantity6
NSN5930-00-548-7944
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 20SR3B4 MFR SWITCH,ROTARY
KEY FEATURES
•
FEATURES PROVIDED: METALLIC INCLOSURE
•
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS: 8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
CONTACT LOAD CURRENT RATING: 200.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
•
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: DUSTPROOF
•
SHAFT TYPE: ROUND SINGLE ACTUATOR
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT9.500 INCHES NOMINAL IN
OVERALL WIDTH6.750 INCHES NOMINAL IN
FEATURES PROVIDEDMETALLIC INCLOSURE
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
UNTHREADED MOUNTING HOLE DIAMETER0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
CONTACT LOAD CURRENT RATING200.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONDUSTPROOF
SHAFT TYPEROUND SINGLE ACTUATOR
LONGEST VERTICAL DISTANCE BETWEEN MOUNTING CENTERS3.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
INDIVIDUAL SECTION QUANTITY6
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
20SR2B4Interchangeable
interchangeable cross-reference
interchangeable
9000S6202-74224Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-15291/13Interchangeable
interchangeable cross-reference
interchangeable
N1015PC13Interchangeable
interchangeable cross-reference
interchangeable
9302Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-15291/11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20SR3B4?
20SR3B4 is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20SR3B4?
There are 11 known substitutes for 20SR3B4: 20SR2B4, 9000S6202-74224, MIL-S-15291/13 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20SR3B4?
20SR3B4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-548-7944. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026