Birnbach · Electronic Components
4125
Insulator, Feedthru
Part Number4125
ManufacturerBirnbach
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-356-0609 (NSN)
Federal Item NameINSULATOR,FEEDTHRU
Federal Supply Class5970 — Electrical Insulators
Base Diameter0.500 INCHES NOMINAL
Height Above Mounting Surface1.250 INCHES NOMINAL
Center Stud Length3.000 INCHES NOMINAL
Screw Thread Quantity Per Inch And32 CENTER STUD
MaterialPORCELAIN OVERALL
Surface FinishGLAZED OVERALL
Mounting Facility Type And Quantit1 THREADED STUD(S)
Top Diameter0.500 INCHES NOMINAL
Screw Thread Diameter And Location0.190 CENTER STUD INCHES NOMINAL
First Counterbore Diameter0.250 INCHES NOMINAL
Style DesignatorDOUBLE, BOWL
Vendor Part NumbersPW42-7
Dissipation Factor At Reference Te1.000
Insulation Resistance At Reference4500.0 MEGOHMS
Terminal Type And Quantity2 SOLDER STUD
Terminal Surface TreatmentSOLDER
Body Length2.000 INCHES NOMINAL
Body Width2.000 INCHES NOMINAL
Center To Center Distance Between1.062 INCHES NOMINAL
Terminal Length0.750 INCHES MAXIMUM
Body Height1.063 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
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 4125 available?
We can source 4125 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 4125 by Birnbach obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4125 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 4125?
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 4125?
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.