Eaton Corp. Opns & Technical Center · Electronic Components
21-174-4
Contact, Electrical
Part Number21-174-4
ManufacturerEaton Corp. Opns & Technical Center
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-257-5749 (NSN)
Federal Item NameCONTACT,ELECTRICAL
Federal Supply Class5999 — Miscellaneous Electrical Components
Style DesignatorFLAT LEAF CONTACT W/ ROUND FIXED POINT
Unthreaded Mounting Hole Diameter0.201 INCHES NOMINAL
Overall Length0.781 INCHES NOMINAL
Point Height0.119 INCHES NOMINAL
Current Rating In Amps50.0
Mounting Facility Quantity1
Voltage Rating In Volts250.0 DC
Mounting MethodUNTHREADED HOLE(S)
Overall Width0.312 INCHES NOMINAL
MaterialCOPPER ALLOY BODY
Precious Material And Weight0.005 SILVER GRAINS, TROY
Cancelled NSN6110-00-366-7646 (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 21-174-4 available?
We can source 21-174-4 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 21-174-4 by Eaton Corp. Opns & Technical Center obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21-174-4 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 21-174-4?
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 21-174-4?
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.