Joslyn Sunbank Company, LLC · Electronic Components
S139-3
Backshell, Electrical Connector
Part NumberS139-3
ManufacturerJoslyn Sunbank Company, LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-878-1639 (NSN)
Federal Item NameBACKSHELL,ELECTRICAL CONNECTOR
Federal Supply Class5935 — Connectors, Electrical
Mounting Facility Type And Quantit4 THREADED HOLE(S)
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialALUMINUM ALLOY
Style DesignatorSTRAIGHT TYPE W/FLANGE
Surface TreatmentCADMIUM AND CHROMATE
Nominal Thread Size0.112 INCHES
Thread Class2B
Overall Height3.438 INCHES MAXIMUM
Cable Opening Diameter1.125 INCHES NOMINAL
Thread Quantity Per Inch40
Thread DirectionRIGHT-HAND
Vendor Part Numbers425170-01
ESD/EMICode A — ESD/EMI sensitive item
Beam Angle15 °
Output Current250 mA
ProducttraceabilityNo
Supply Voltage Dc Max60 V
RohscompliantYES
Product Range-
IscanonicalY
Sensor Body MaterialABS (Acrylonitrile Butadiene Styrene)
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 S139-3 available?
We can source S139-3 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 S139-3 by Joslyn Sunbank Company, LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If S139-3 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 S139-3?
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 S139-3?
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.