Boeing · Electronic Components
53257-305-3
Terminal Board
Part Number53257-305-3
ManufacturerBoeing
AvailabilityAvailable to order — request a quote
Specifications
NSN5940-00-180-7978 (NSN)
Federal Item NameTERMINAL BOARD
Federal Supply Class5940 — Lugs, Terminals, and Terminal Strips
Terminal Pattern ArrangementMULTI-ROW
Section Quantity2
Terminal DesignNONFEEDTHRU
Center To Center Distance Between0.375 INCHES
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Nonfeedthru Terminal Type434 SINGLE
Precious MaterialSILVER
Material Document And ClassificatiMIL-P-18177,TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE BOARD
MaterialGLASS FIBER AND PLASTIC EPOXY BOARD
Mounting Hole Diameter0.120 INCHES
Special Markings1 THRU 20,R1,R11,R13,R17,R18,R19,A3
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 53257-305-3 available?
We can source 53257-305-3 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 53257-305-3 by Boeing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 53257-305-3 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 53257-305-3?
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 53257-305-3?
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.