Bussmann · Electronic Components
BK/S506-400-R
FUSE 400MA 250V T-LAG GLASS S506
Part NumberBK/S506-400-R
ManufacturerBussmann
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-250-2501 (NSN)
Federal Item NameFUSE,CARTRIDGE
Overall Length0.781 INCHES NOMINAL
Overall Diameter0.219 INCHES NOMINAL
Body StyleTUBE TYPE
Features ProvidedNONRENEWABLE FUSIBLE ELEMENT
Surface TreatmentNICKEL TERMINAL
Continuous Current Rating In Amps0.400
Circuit Over Current Interruption12.0 210 PCT OF CURRENT RATING
Interruption Indicator MethodVISIBLE ELEMENT
Maximum Voltage Rating In Volts250.0 AC
Federal Supply Class5920 — Fuses, Arrestors, Absorbers, And Protectors
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 BK/S506-400-R available?
We can source BK/S506-400-R 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 BK/S506-400-R by Bussmann obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BK/S506-400-R 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 BK/S506-400-R?
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 BK/S506-400-R?
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.