DRS Naval Power Systems · Electronic Components
21-507-3
Contact, Electrical
Part Number21-507-3
ManufacturerDRS Naval Power Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-259-8727 (NSN)
Federal Item NameCONTACT,ELECTRICAL
Federal Supply Class5999 — Miscellaneous Electrical Components
Voltage Rating In Volts440.0 AC
Precious Material And LocationCONTACT SILVER
MaterialCOPPER ALLOY CONTACT
Precious Material And Weight0.005 SILVER GRAINS, TROY
Surface TreatmentCADMIUM BODY
Precious MaterialSILVER
Style DesignatorIRREGULAR SHAPE
Overall Height0.281 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.094 INCHES NOMINAL
Mounting Facility Quantity2
Overall Width0.406 INCHES NOMINAL
Vendor Part Numbers97146W1ITEM1A
Cancelled NSN5930-00-343-0577 (cancelled)
ESD/EMICode A — ESD/EMI sensitive item
For Use WithD Sub Connectors
ProducttraceabilityNo
RohscompliantYES
Accessory TypeScrewlock Assembly Kit
Thread Size Imperial-
Product Range-
IscanonicalY
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 21-507-3 available?
We can source 21-507-3 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 21-507-3 by DRS Naval Power Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21-507-3 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 21-507-3?
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 21-507-3?
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.