Amphenol · Electronic Components
MS3102A20-4P
Circular MIL / Spec Connectors 4P #12 PIN CONTACTS
Part NumberMS3102A20-4P
ManufacturerAmphenol
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-149-3457 (NSN)
Additional NSNs5935-01-683-0116
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Terminal TypeSOLDER WELL ALL MATING ENDS ALL CONTACT GROUPINGS
Overall Length1.750 INCHES NOMINAL
Overall Width1.500 INCHES NOMINAL
Overall Height1.500 INCHES NOMINAL
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING
Nominal Thread Size1.250 INCHES
Contact Arrangement20-4 SINGLE MATING END
Included Contact Quantity4 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeROUND PIN ALL MATING ENDS ALL CONTACT GROUPINGS
Contact Maximum Dc Voltage Rating1250.0 SINGLE MATING END SINGLE CONTACT GROUPING
Federal Supply Class5935 — Connectors, Electrical
Contact Position Arrangement Style20-4 SINGLE MATING END
Shell Surface TreatmentCADMIUM
Connector Locking MethodEXTERNALLY THREADED SHELL
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Shell Surface Treatment Document AQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Insert Position In Deg0.0
Nominal Thread Length0.625 INCHES
Cancelled NSN5935-00-549-8235 (cancelled)
Distance Between Centerlines Of Mo1.156 INCHES NOMINAL
Mating End Quantity1
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 MS3102A20-4P available?
We can source MS3102A20-4P 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 MS3102A20-4P by Amphenol obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3102A20-4P 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 MS3102A20-4P?
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 MS3102A20-4P?
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.