SAE International · Electronic Components
M81511/56FF03S4
Connector, Plug, Electrical
Part NumberM81511/56FF03S4
ManufacturerSAE International
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-134-3507 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Shell Surface TreatmentCHROMIUM
Contact Position Arrangement Style18-21 F03 SINGLE MATING END
Test Data Document81349-MIL-C-81511 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Connector Locking MethodBAYONET LATCH
Shell MaterialALUMINUM ALLOY 6061
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Included Contact Quantity21 SINGLE MATING END SINGLE CONTACT GROUPING
Insert Position In Deg84.0 AND 152.0 AND 204.0 AND 334.0
Contact Surface Treatment DocumentMIL-G-45204,TY 1,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
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 M81511/56FF03S4 available?
We can source M81511/56FF03S4 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 M81511/56FF03S4 by SAE International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M81511/56FF03S4 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 M81511/56FF03S4?
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 M81511/56FF03S4?
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.