Avtron Aerospace · Electronic Components
A3553
Insulator, Bushing
Part NumberA3553
ManufacturerAvtron Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-419-1355 (NSN)
Federal Item NameINSULATOR,BUSHING
Federal Supply Class5970 — Electrical Insulators
Outside Diameter1.125 INCHES NOMINAL
Flange Thickness0.156 INCHES NOMINAL
MaterialOVERALL STEATITE,NO. S-151,AVTRON MFG INC
Style DesignatorCYLINDRICAL
Identification Code ColorNATURAL
Overall Height0.500 INCHES NOMINAL
Shoulder Outside Diameter0.890 INCHES NOMINAL
Shank Outside Diameter0.938 INCHES NOMINAL
Shank Height0.125 INCHES NOMINAL
Inside Diameter0.688 INCHES NOMINAL
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 A3553 available?
We can source A3553 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 A3553 by Avtron Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A3553 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 A3553?
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 A3553?
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.