Amphenol · Connectors
MS3456L18-9B
Circular MIL / Spec Connectors 7P Size 18 Threaded Plug
Part NumberMS3456L18-9B
ManufacturerAmphenol
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-124-7256 (NSN)
Federal Item NameCONNECTOR BODY,PLUG,ELECTRICAL
Overall Length2.125 INCHES MAXIMUM2.125 INCHES MAXIMUM
Overall Diameter1.344 INCHES MAXIMUM1.344 INCHES MAXIMUM
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLINGSTRAIGHT SHAPE, INTERNAL COUPLING
Nominal Thread Size1.062 INCHES AND 1.062 INCHES AND 1.125 INCHES1.125 INCHES
Contact Arrangement18-9 SINGLE MATING END18-9 SINGLE MATING END
Threaded Device TypeBACK SHELL AND BACK SHELL AND COUPLING FACILITYCOUPLING FACILITY
Thread Class2A AND 2A AND 2B2B
Thread Quantity Per Inch1818
Insert MaterialSILICON SINGLE MATING ENDSILICON SINGLE MATING END
Shell MaterialALUMINUM ALLOYALUMINUM ALLOY
Federal Supply Class5935 — Connectors, Electrical
Contact Position Arrangement Style18-9 SINGLE MATING END18-9 SINGLE MATING END
Environmental ProtectionMOISTURE PROOF AND MOISTURE PROOF AND SALT WATER RESISTANT AND SALT WATER RESISTANT AND VIBRATION PROOFVIBRATION PROOF
Nominal Thread Length0.290 INCHES AND 0.290 INCHES AND 0.664 INCHES0.664 INCHES
Shell TypeSOLIDSOLID
ESD/EMICode A — ESD/EMI sensitive item
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 MS3456L18-9B available?
We can source MS3456L18-9B 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 MS3456L18-9B by Amphenol obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3456L18-9B 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 MS3456L18-9B?
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 MS3456L18-9B?
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.