Switchcraft Inc. · Electronic Components
UJ4B
CONN 3COND UNI JACK FOR PLUG
Part NumberUJ4B
ManufacturerSwitchcraft Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-127-3809 (NSN)
Federal Item NameJACK,TELEPHONE
MaterialPLASTIC INSULATOR; COPPER ALLOY BUSHING
Terminal TypeTAB, SOLDER LUG
Overall Length1.094 INCHES NOMINAL
Overall Diameter0.469 INCHES NOMINAL
Body StyleTHREADED BUSHING MOUNTED
Precious MaterialSILVER
Precious Material LocationCONTACT SURFACES SILVER
Nominal Thread Size0.281 INCHES
Thread Quantity Per Inch32
Surface TreatmentNICKEL BUSHING; TIN BODY
Federal Supply Class5935 — Connectors, Electrical
Jack Contact Arrangement DesignatoJ7
Bushing Accommodation Hole ShapeROUND
Bushing Thru Hole Accommodation Di0.177 INCHES NOMINAL
Thread Series DesignatorUNS
Mounting Facility Type And Quantit1 BUSHING
Accommodated Finger TypeTWO CONDUCTOR, SLENDER ROUND TIP SINGLE FINGER
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 UJ4B available?
We can source UJ4B 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 UJ4B by Switchcraft Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If UJ4B 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 UJ4B?
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 UJ4B?
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.