Boeing · Electronic Components
5M1749-21B75PN
Connector, Plug, Electrical
Part Number5M1749-21B75PN
ManufacturerBoeing
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-320-2503 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Overall Diameter1.641 INCHES MAXIMUM
Contact Surface Treatment DocumentMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Dc Voltage Rating550.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity4 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Connector Locking MethodBAYONET SLOT
Contact Maximum Ac Voltage Rating400.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeCOAXIAL PIN SINGLE MATING END SINGLE CONTACT GROUPING
Shell Surface TreatmentCADMIUM AND NICKEL
Shell MaterialALUMINUM ALLOY
Operating Temp Rating-65.0 CELSIUS MINIMUM AND 175.0 CELSIUS MAXIMUM
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 5M1749-21B75PN available?
We can source 5M1749-21B75PN 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 5M1749-21B75PN by Boeing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5M1749-21B75PN 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 5M1749-21B75PN?
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 5M1749-21B75PN?
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.