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257939F3 — SWITCH,ROTARY

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

257939F3: SWITCH,ROTARY.

The SWITCH,ROTARY is a the manufacturer industrial component. Key specifications include shaft_type: ROUND SINGLE ACTUATOR, shaft_length: 2.062 INCHES NOMINAL SINGLE ACTUATOR IN, thread_class: 2A SINGLE MOUNTING FACILITY A, overall_width: 1.250 INCHES NOMINAL IN, pole_quantity: 1 EACH SECTION REAR, terminal_type: TAB, SOLDER LUG. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-433-6552, 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→ 257939F3
NSN: 5930-00-433-6552
FSC: 5930 — Switches
CAGE: 76854 — ELECTRO SWITCH CORP. DBA OAK GRISGSBY DIV ELECTROSWITCH (USA)
SPECIFICATIONS
shaft_typeROUND SINGLE ACTUATOR
shaft_length2.062 INCHES NOMINAL SINGLE ACTUATOR IN
thread_class2A SINGLE MOUNTING FACILITY A
overall_width1.250 INCHES NOMINAL IN
pole_quantity1 EACH SECTION REAR
terminal_typeTAB, SOLDER LUG
thread_length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
overall_height1.313 INCHES NOMINAL IN
overall_length5.345 INCHES NOMINAL IN
shaft_diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
throw_quantity7 EACH SECTION REAR
mounting_methodTHREADED BUSHING SINGLE MOUNTING FACILITY
NSN5930-00-433-6552
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,ROTARY TITLE COMPONENT PN 257939F3 MFR SWITCH,ROTARY
KEY FEATURES
•
SHAFT TYPE: ROUND SINGLE ACTUATOR
•
SHAFT DIAMETER: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN
•
SWITCH CONTACT BASIC DESIGN: NONPILE-UP SYMMETRICAL
•
NONTURN DEVICE RADIUS: 0.531 INCHES NOMINAL AT 3:00 OCLOCK IN
•
TERMINAL TYPE: TAB, SOLDER LUG
•
DETENT ROTATIONAL TORQUE RANGE: +10.000 TO 50.000 INCH-OUNCES SINGLE ACTUATOR IN
•
CONTACT LOAD CURRENT RATING: 2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
TECHNICAL CHARACTERISTICS
SHAFT TYPEROUND SINGLE ACTUATOR
OVERALL HEIGHT1.313 INCHES NOMINAL IN
SHAFT DIAMETER0.250 INCHES NOMINAL SINGLE ACTUATOR IN
SWITCH CONTACT BASIC DESIGNNONPILE-UP SYMMETRICAL
NONTURN DEVICE RADIUS0.531 INCHES NOMINAL AT 3:00 OCLOCK IN
TERMINAL TYPETAB, SOLDER LUG
DETENT ROTATIONAL TORQUE RANGE+10.000 TO 50.000 INCH-OUNCES SINGLE ACTUATOR IN
CONTACT LOAD CURRENT RATING2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
CONTACT LOAD CURRENT RATING1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
MOUNTING METHODTHREADED BUSHING SINGLE MOUNTING FACILITY
SUBSTITUTES & CROSS-REFERENCES 1
12296Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 257939F3?
257939F3 is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 257939F3?
There is 1 known substitute for 257939F3: 12296. Substitute compatibility should be verified for your specific system.
What is the NSN for 257939F3?
257939F3 is cataloged in the U.S. Government catalog under NSN 5930-00-433-6552. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.