Lerco · Electronic Components
4581-B-1
Terminal, Feedthru
Part Number4581-B-1
ManufacturerLerco
AvailabilityAvailable to order — request a quote
Specifications
NSN5940-00-673-1024 (NSN)
Federal Item NameTERMINAL,FEEDTHRU
Federal Supply Class5940 — Lugs, Terminals, and Terminal Strips
Mounting Method StylePRESS FIT KNURL
Minor Bushing Diameter0.120 INCHES
Precious MaterialSILVER
Basic Shape StyleNONTUBULAR ROUND
Overall Height0.532 INCHES0.532 INCHES
Conductor Accommodation TypePIN SECOND END
Largest Diameter0.041 INCHES SECOND END
First End Terminal Length0.194 INCHES
Minor Bushing Length0.093 INCHES
Second End Terminal Length0.219 INCHES
Surface TreatmentSILVER OVERALL SINGLE LAYER
Cancelled NSN5999-01-096-0213 (cancelled)
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 4581-B-1 available?
We can source 4581-B-1 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 4581-B-1 by Lerco obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4581-B-1 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 4581-B-1?
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 4581-B-1?
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.