Keystone Electronics · Electronic Components
3221
WASHER FLAT 3/8 .385X.500" FIBRE
Part Number3221
ManufacturerKeystone Electronics
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-230-6388 (NSN)
Federal Item NameADAPTER,TEST
Federal Supply Class6625 — Test Instruments
Overall Length7.000 INCHES NOMINAL
FSC Application DataTEST SET,ELECTRONIC EQUIPMENT
MaterialPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) BODY
Ac Voltage Rating500.0 VOLTS NOMINAL
Criticality Code JustificationFEAT
Test Item Connection MethodINTEGRAL SOCKET
Body Length1.468 INCHES NOMINAL
Contact Maximum Current Rating In20.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeCURVED PIN W/LOCK SINGLE MATING END SINGLE CONTACT GROUPING
Connector Locking MethodCONTACT TWISTLOCK
Contact Maximum Dc Voltage Rating250.0 SINGLE MATING END SINGLE CONTACT GROUPING
Insert MaterialPLASTIC SINGLE MATING END
Contact Maximum Ac Voltage Rating250.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity2 SINGLE MATING END SINGLE CONTACT GROUPING
Connector Cable Strain Relief MethCABLE CLAMP
Diameter1.500 INCHES NOMINAL
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 3221 available?
We can source 3221 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 3221 by Keystone Electronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3221 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 3221?
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 3221?
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.