Rockwell Automation · Electronic Components
JA1L040S255MA
Resistor, Variable, Nonwire Wound,
Part NumberJA1L040S255MA
ManufacturerRockwell Automation
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-539-4408 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Shaft Length0.625 INCHES NOMINAL
Resistance Tolerance Per Section I-20.0 TO 20.0 SINGLE SECTION
Terminal Type And Quantity3 TAB, SOLDER LUG
Power Dissipation Rating Per Secti2.0 FREE AIR SINGLE SECTION
Shaft StyleROUND, SLOTTED
Mounting MethodSTANDARD BUSHING
Screw Thread Series DesignatorUNEF
Screw Thread Quantity Per Inch32.0
Nonturn Device Radius0.531 INCHES NOMINAL
Electrical Resistance Per Section2.500 MEGOHMS SINGLE SECTION
Screw Thread Diameter0.375 INCHES NOMINAL
Cancelled NSN5905-00-567-4974 (cancelled)
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 JA1L040S255MA available?
We can source JA1L040S255MA 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 JA1L040S255MA by Rockwell Automation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If JA1L040S255MA 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 JA1L040S255MA?
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 JA1L040S255MA?
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.