Thermo Electron Corporation · Electronic Components
1780
Brush, Electrical Contact
Part Number1780
ManufacturerThermo Electron Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-238-9147 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Length0.875 INCHES NOMINAL
Width0.248 INCHES NOMINAL
Thickness0.248 INCHES NOMINAL
Criticality Code JustificationMATT AND MDCL
Material Document And ClassificatiKIRKWOOK CARBON CO GR DD MFR REF SINGLE MATERIAL RESPONSE
Top StyleCYLINDRICAL HEAD
Head Diameter0.184 INCHES NOMINAL
Body StyleRECTANGULAR COMMUTATOR
Spring Free Length2.188 INCHES NOMINAL
Contact Face StyleCONCAVE
Head Length0.094 INCHES NOMINAL
Vendor Part NumbersPX342DD
Cross Sectional Shape StyleROUND
Overall Length4.000 FEET
Conductor Quantity3
Style DesignatorJACK AND LUG
Strand Quantity Per Conductor104 ALL CONDUCTORS
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Conductor FormSTRANDED ALL CONDUCTORS
Strand Awg Size Per Conductor30 ALL CONDUCTORS
Conductor Arrangement And Quantity3 SINGLES
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 1780 available?
We can source 1780 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 1780 by Thermo Electron Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1780 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 1780?
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 1780?
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.