Boeing · Electronic Components
ST5M1291B2
Connector, Receptacle, Electrical
Part NumberST5M1291B2
ManufacturerBoeing
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-550-9983 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Overall Diameter1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size0.688 INCHES
Included Contact Quantity13 SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And Weight0.013 GOLD GRAINS, TROY AND 0.013 SILVER GRAINS, TROY
Shell Surface TreatmentCADMIUM AND CHROMATE
Contact Surface TreatmentGOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING
Shell MaterialSTEEL
Thread Series DesignatorUNEF
Shell TypeSOLID
Insert Position In Deg0.0
Vendor Part Numbers18504, 10-499492-35P, 10-599342-35P
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 ST5M1291B2 available?
We can source ST5M1291B2 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 ST5M1291B2 by Boeing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ST5M1291B2 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 ST5M1291B2?
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 ST5M1291B2?
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.