Keysight Technologies Inc. · Electronic Components
1251-5286
Contact Assembly, Electrical
Part Number1251-5286
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-189-9589 (NSN)
Federal Item NameCONTACT ASSEMBLY,ELECTRICAL
Federal Supply Class5999 — Miscellaneous Electrical Components
Precious Material And LocationCONTACT SURFACES GOLD
Precious MaterialGOLD
Terminal TypePIN
Contact Item Name Assigned By GoveCONTACT ASSY
Mounting ConfigurationFOUR PINS ON 0.100 IN. CENTERS
Overall Width1.170 INCHES NOMINAL
Overall Length0.500 INCHES NOMINAL
Government Agency Controlling ContUSAF
Contact Identifying Number Assigne1251-5286
Structural DesignNONSWITCHING
Terminal Quantity4
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 1251-5286 available?
We can source 1251-5286 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 1251-5286 by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1251-5286 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 1251-5286?
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 1251-5286?
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.