Littelfuse · Electronic Components
177.5721.0001
Fuseholder, Block
Part Number177.5721.0001
ManufacturerLittelfuse
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-730-5736 (NSN)
Federal Item NameFUSEHOLDER,BLOCK
Federal Supply Class5920 — Fuses and Lightning Arresters
Mounting Hole StyleIN-LINE ALONG THE LENGTH
Center To Center Distance Between61.5 MILLIMETERS MINIMUM AND 62.0 MILLIMETERS MAXIMUM
Voltage In Volts80.0
Body StyleOPEN TYPE
Overall Length80.0 MILLIMETERS MINIMUM AND 85.0 MILLIMETERS MAXIMUM
Mounting Hole Quantity2
Accommodated Fuse Length11.0 MILLIMETERS NOMINAL
Overall Height50.7 MILLIMETERS MINIMUM AND 51.3 MILLIMETERS MAXIMUM
Current Carrying Rating In Amps425.0
Vendor Part Numbers50035383-01
ESD/EMICode A — ESD/EMI sensitive item
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 177.5721.0001 available?
We can source 177.5721.0001 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 177.5721.0001 by Littelfuse obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 177.5721.0001 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 177.5721.0001?
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 177.5721.0001?
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.