Duke'S Aerospace · Electronic Components
299-55
Insulator, Disk
Part Number299-55
ManufacturerDuke'S Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-060-8744 (NSN)
Federal Item NameINSULATOR,DISK
Federal Supply Class5970 — Electrical Insulators
Width Across Flats1.186 INCHES NOMINAL
Second Hole Diameter0.531 INCHES NOMINAL
Outside Diameter1.710 INCHES NOMINAL
MaterialFIBERGLASS AND PLASTIC EPOXY OVERALL
Third Hole Diameter0.187 INCHES NOMINAL
Distance From Centerline To Flat0.593 INCHES NOMINAL
First Hole Diameter0.187 INCHES NOMINAL
Second Hole Spacing1.000 INCHES NOMINAL
First Hole Spacing0.500 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 299-55 available?
We can source 299-55 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 299-55 by Duke'S Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 299-55 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 299-55?
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 299-55?
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.