MIL-SPEC · Connectors > Circular MIL
MS3106F12S-3S
MIL-C-5015 circular connector, straight plug, shell size 12, insert 3, socket contacts
Part NumberMS3106F12S-3S
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5935-00-270-1221 (NSN)
Additional NSNs5935-00-543-0207
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Overall Diameter1.125 INCHES MAXIMUM
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLING W/STRAIN RELIEF
Precious MaterialGOLD AND SILVER
Precious Material LocationCONTACT SURFACES GOLD AND CONTACT SURFACES SILVER
Nominal Thread Size0.750 INCHES
Contact Arrangement12S-3 SINGLE MATING END
Included Contact Quantity2 SINGLE MATING END SINGLE CONTACT GROUPING
Mating End Quantity1
Body Length2.312 INCHES MAXIMUM
Federal Supply Class5935 — Connectors, Electrical
Connector Cable Strain Relief MethCABLE CLAMP
Contact Position Arrangement Style12S-3 SINGLE MATING END
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And Weight0.002 GOLD GRAINS, TROY
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Vendor Part Numbers6420688, MS3106F12S3S
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 MS3106F12S-3S in stock?
Yes — MS3106F12S-3S is in our stock database. Request a quote for current pricing and lead time.
Is MS3106F12S-3S by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3106F12S-3S 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 MS3106F12S-3S?
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 MS3106F12S-3S?
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.