Winchester Interconnect · Electronic Components
HM9P55
Connector, Plug, Electrical
Part NumberHM9P55
ManufacturerWinchester Interconnect
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-983-5291 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Mating End Quantity1
Contact Maximum Current Rating In5.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Shell MaterialSTEEL CORROSION RESISTING
Insert MaterialGLASS SINGLE MATING END
Included Contact Quantity9 SINGLE MATING END SINGLE CONTACT GROUPING
Overall Diameter0.578 INCHES NOMINAL
Overall Length0.516 INCHES NOMINAL
Vendor Part Numbers44000-9P0056, 223-056-9003
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 HM9P55 available?
We can source HM9P55 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 HM9P55 by Winchester Interconnect obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If HM9P55 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 HM9P55?
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 HM9P55?
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.