Halsit Holdings · Electronic Components
257-105
Post, Binding, Electrical
Part Number257-105
ManufacturerHalsit Holdings
AvailabilityAvailable to order — request a quote
Specifications
NSN5940-00-685-8603 (NSN)
Federal Item NamePOST,BINDING,ELECTRICAL
Federal Supply Class5940 — Lugs, Terminals, and Terminal Strips
Maximum Height Above Mounting Surf0.999 INCHES
Dry Flashover Voltage Rating In Vo1000.0
Cap Outside Diameter0.500 INCHES
Precious Material And LocationFINISH O/A EXCEPT INSULATION GOLD
Precious Material And Weight0.040 GOLD GRAINS, TROY
Precious MaterialGOLD
Wire Hole Diameter0.098 INCHES SINGLE END
Conductor Accommodation TypeSCREW CAP W/HOLE SINGLE END
MaterialCOPPER ALLOY OVERALL EXCEPT INSULATION
Surface TreatmentGOLD OVERALL EXCEPT INSULATION SINGLE LAYER
Identification Code ColorBLUE
Vendor Part NumbersBP30-10BL, 257BLUE, 8599179-002
Cancelled NSN5940-00-752-0187 (cancelled)
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 257-105 available?
We can source 257-105 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 257-105 by Halsit Holdings obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 257-105 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 257-105?
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 257-105?
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.