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52-257 ✓ Verified by PartsTable
Bestway · COMPONENT
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

SWITCH,BEAM SELECTING,HEADLIGHT. Key specifications include phase: SINGLE, current_type: AC, rotor_weight: 14.0 POUNDS LBS, rotor_function: SEEKS MERIDIAN, voltage_in_volts: 115.0, transmission_type: SYNCHRO. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-082-0653, 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
52-257
NSN: 5365-00-082-0653
FSC: 5365
CAGE: 02121 — GOODRICH AEROSPACE CANADA LTD (CAN)
SPECIFICATIONS
phaseSINGLE
current_typeAC
rotor_weight14.0 POUNDS LBS
rotor_functionSEEKS MERIDIAN
rotor_quantity2
voltage_in_volts115.0
transmission_typeSYNCHRO
frequency_in_hertz60.0
rotor_speed_in_rpm12000.0
stabilizing_featureNOT INCLUDED
pendulous_characteristicPENDULOUS
speed/latitude_correction_methodAUTOMATIC OR MANUAL
NSN5365-00-082-0653
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Bestway SWITCH,BEAM SELECTING,HEADLIGHT TITLE COMPONENT PN 52-257 MFR Bestway SWITCH,BEAM SELECTING,
KEY FEATURES
•
LAMINATION THICKNESS: 0.002 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 316
•
APERTURE DIAMETER: 1.950 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,COND ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: SEPARABLE
•
CONSTRUCTION: LAMINATED
•
OUTSIDE DIAMETER: 2.405 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LAMINATION THICKNESS0.002 INCHES NOMINAL IN
MATERIALSTEEL COMP 316
APERTURE DIAMETER1.950 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE
FEATURES PROVIDEDSEPARABLE
CONSTRUCTIONLAMINATED
OUTSIDE DIAMETER2.405 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
11481Interchangeable
interchangeable cross-reference
interchangeable
SM-B-148420Interchangeable
interchangeable cross-reference
interchangeable
468LXInterchangeable
interchangeable cross-reference
interchangeable
SR4495BInterchangeable
interchangeable cross-reference
interchangeable
GG-T-35Interchangeable
interchangeable cross-reference
interchangeable
27J762Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52-257?
52-257 is a SWITCH,BEAM SELECTING,HEADLIGHT manufactured by Bestway.
What parts can replace 52-257?
There are 8 known substitutes for 52-257: 11481, SM-B-148420, 468LX and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 52-257?
52-257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-082-0653. 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