Materion Brush · Electronic Components
BBD3H440-31
Insulator, Disk
Part NumberBBD3H440-31
ManufacturerMaterion Brush
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-101-3915 (NSN)
Federal Item NameINSULATOR,DISK
Federal Supply Class5970 — Electrical Insulators
Material TypeNATURAL AND UNBLEACHED AND ELEPHANTIDE WOOD PULP PAPER COMPOSITION TWO
First Hole Spacing0.100 INCHES NOMINAL
MaterialGLASS-CERAMIC OR MICA OR COTTON OR CERAMIC OR SILK OR FIBERGLASS OR GLASS OR PLASTIC POLYVINYL CHLORIDE (PVC) OR
Material FormCLOTH OVERALL
Overall Height0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM
Style DesignatorDRILLED, FLAT
Second Hole Spacing0.190 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
First Hole Diameter0.049 INCHES MINIMUM AND 0.059 INCHES MAXIMUM
Outside Diameter0.420 INCHES MINIMUM AND 0.460 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 BBD3H440-31 available?
We can source BBD3H440-31 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 BBD3H440-31 by Materion Brush obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BBD3H440-31 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 BBD3H440-31?
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 BBD3H440-31?
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.