Eaton Corp. Opns & Technical Center · Electronic Components
643-348
Resistor Assembly
Part Number643-348
ManufacturerEaton Corp. Opns & Technical Center
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-501-6453 (NSN)
Federal Item NameRESISTOR ASSEMBLY
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-10.0 TO 10.0
Component NameFIXED WIRE WOUND RESISTOR
Component RelationshipNOT MATCHED
Component Identifying Number1229-522A2 PART NO.
Component Controlling AgencyCUTLER-HAMMER INC
Mounting ConfigurationFOUR 1/2 IN. BY 1/4 IN. W MTG SLOTS ON 7-9/16 IN. BY 8-7/8 IN. MTG CENTERS
Mounting MethodSTUD(S)
Component Quantity1 AND 4 AND 3
Assembly Construction MethodENCASED IN CAGE
Electrical Resistance5.4 OHMS AND 2.4 OHMS AND 1.2 OHMS
Resistor Power Dissipation Rating7.8 AND 9.5 AND 9.6
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 643-348 available?
We can source 643-348 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 643-348 by Eaton Corp. Opns & Technical Center obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 643-348 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 643-348?
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 643-348?
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.