Eaton Corp. Opns & Technical Center · Electronic Components
21-138
Contact, Electrical
Part Number21-138
ManufacturerEaton Corp. Opns & Technical Center
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-499-0781 (NSN)
Federal Item NameCONTACT,ELECTRICAL
Federal Supply Class5999 — Miscellaneous Electrical Components
Mounting MethodUNTHREADED HOLE(S)
MaterialCOPPER CONTACT
Distance Between Mounting Facility3.180 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.250 INCHES NOMINAL
Mounting Facility Quantity2
Voltage Rating In Volts115.0 DC
Current Rating In Amps90.0
Vendor Part Numbers622212
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 21-138 available?
We can source 21-138 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 21-138 by Eaton Corp. Opns & Technical Center obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21-138 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 21-138?
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 21-138?
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.