Amphenol · Electronic Components
MS3456W20-4SX
CONN PLUG 4POS STRAIGHT W/SCKT
Part NumberMS3456W20-4SX
ManufacturerAmphenol
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-085-3290 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Overall Length2.125 INCHES MAXIMUM
Overall Diameter1.469 INCHES MAXIMUM
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLING
Precious MaterialGOLD
Precious Material LocationCONTACT SURFACES GOLD
Special FeaturesIN ORDER TO COMPLETE THE CONNECTOR ASSEMBLY,THE USER MUST OBTAIN/PROVIDE THE BACKSHELL. STANDARD VERSIONS MAY BE ORDERED
Nominal Thread Size1.188 INCHES AND 1.250 INCHES
Contact Arrangement20-4 SINGLE MATING END
Included Contact Quantity4 SINGLE MATING END SINGLE CONTACT GROUPING
Federal Supply Class5935 — Connectors, Electrical
Thread Class2A AND 2B
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Thread DirectionRIGHT-HAND
Insert Position In Deg250.0
Insert MaterialSILICON SINGLE MATING END
Precious Material And LocationCONTACT SURFACES GOLD
Shell Surface Treatment Document AQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNEF
Thread Quantity Per Inch18
Cancelled NSN5935-01-097-1781 (cancelled)
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is MS3456W20-4SX available?
We can source MS3456W20-4SX even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is MS3456W20-4SX by Amphenol obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3456W20-4SX has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like MS3456W20-4SX?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for MS3456W20-4SX?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.