PartsTable
Technical Data Sheet
PartsTable / MRO / 1SR4A4A
1SR4A4A ✓ 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 SINGLE ACTUATOR, flat_height: 0.312 INCHES NOMINAL SINGLE ACTUATOR IN, shaft_length: 0.551 INCHES NOMINAL SINGLE ACTUATOR IN, overall_width: 1.562 INCHES NOMINAL IN, pole_quantity: 1 EACH SECTION FRONT, terminal_type: TAB W/SCREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-259-8953, 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→ 1SR4A4A
NSN: 5930-00-259-8953
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
shaft_typeROUND, FLATTED SINGLE ACTUATOR
flat_height0.312 INCHES NOMINAL SINGLE ACTUATOR IN
shaft_length0.551 INCHES NOMINAL SINGLE ACTUATOR IN
overall_width1.562 INCHES NOMINAL IN
pole_quantity1 EACH SECTION FRONT
terminal_typeTAB W/SCREW
overall_height2.406 INCHES NOMINAL IN
shaft_diameter0.500 INCHES NOMINAL SINGLE ACTUATOR IN
throw_quantity1 EACH SECTION FRONT
mounting_methodBASE SINGLE MOUNTING FACILITY
first_flat_length0.375 INCHES NOMINAL SINGLE ACTUATOR IN
contact_switching_actionBREAKS BEFORE MAKES EACH SECTION FRONT
NSN5930-00-259-8953
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 1SR4A4A MFR SWITCH,ROTARY
KEY FEATURES
•
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: DUSTPROOF
•
SWITCH ACTUATOR INDEXING POSITION QUANTITY: 2 SINGLE ACTUATOR
•
SHAFT LENGTH: 0.551 INCHES NOMINAL SINGLE ACTUATOR IN
•
SWITCH ACTUATOR POSITIONING INCREMENT: 90.0 DEGREES SINGLE ACTUATOR
•
SWITCH CONTACT BASIC DESIGN: NONPILE-UP SYMMETRICAL
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE SINGLE MOUNTING FACILITY
TECHNICAL CHARACTERISTICS (FLIS)
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONDUSTPROOF
SWITCH ACTUATOR INDEXING POSITION QUANTITY2 SINGLE ACTUATOR
OVERALL HEIGHT2.406 INCHES NOMINAL IN
SHAFT LENGTH0.551 INCHES NOMINAL SINGLE ACTUATOR IN
SWITCH ACTUATOR POSITIONING INCREMENT90.0 DEGREES SINGLE ACTUATOR
SWITCH CONTACT BASIC DESIGNNONPILE-UP SYMMETRICAL
OVERALL WIDTH1.562 INCHES NOMINAL IN
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE SINGLE MOUNTING FACILITY
TERMINAL TYPETAB W/SCREW
CONTACT LOAD CURRENT RATING10.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
MIL-S-15291/3Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-15291/3Interchangeable
interchangeable cross-reference
interchangeable
M15291/3-001Interchangeable
interchangeable cross-reference
interchangeable
9000S6202-74085REV1TYPE1SR2A4Interchangeable
interchangeable cross-reference
interchangeable
C10301AInterchangeable
interchangeable cross-reference
interchangeable
9000S6202-74085TY1SR2B4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1SR4A4A?
1SR4A4A is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1SR4A4A?
There are 26 known substitutes for 1SR4A4A: MIL-S-15291/3, MIL-DTL-15291/3, M15291/3-001 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1SR4A4A?
1SR4A4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-259-8953. 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