Winchester Interconnect · Electronic Components
421586-03
Insulator, Bushing
Part Number421586-03
ManufacturerWinchester Interconnect
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-530-4845 (NSN)
Federal Item NameINSULATOR,BUSHING
Federal Supply Class5970 — Electrical Insulators
Identification Code ColorWHITE
Style DesignatorSHOULDER
First Counterbore Diameter0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM
Outside Diameter0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM
Overall Height0.198 INCHES MINIMUM AND 0.218 INCHES MAXIMUM
Width Across Flats0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM
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 421586-03 available?
We can source 421586-03 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 421586-03 by Winchester Interconnect obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 421586-03 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 421586-03?
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 421586-03?
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.