Bud Industries Inc. · Electronic Components
AC421
Chassis, Electrical-Electronic Eq
Part NumberAC421
ManufacturerBud Industries Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5975-00-549-9431 (NSN)
Federal Item NameCHASSIS,ELECTRICAL-ELECTRONIC EQ
Federal Supply Class5975 — Electrical Hardware and Supplies
Mounting Hole Diameter0.219 INCHES
Design FeaturePUNCHED HOLES
MaterialALUMINUM ALLOY 5005
Component Mounting Facility Type A4 UNTHREADED HOLE
Mounting Provision For Which DesigUNTHREADED HOLE(S)
Style DesignatorCLOSED ENDS AND SIDES FLANGED
Mounting Facility Size0.219 IN. DIA
ColorALUMINUM, NATURAL
Mounting Facility Spacing3.000 IN. C TO C
Material Thickness0.040 INCHES NOMINAL
Overall Depth5.000 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 AC421 available?
We can source AC421 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 AC421 by Bud Industries Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AC421 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 AC421?
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 AC421?
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.