Mission Systems Davenport · Electronic Components
PB-51874-2
Brush, Electrical Contact
Part NumberPB-51874-2
ManufacturerMission Systems Davenport
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-175-2546 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Width0.183 INCHES NOMINAL
Thickness0.183 INCHES NOMINAL
Body StyleRECTANGULAR COMMUTATOR
Radius0.297 INCHES NOMINAL
Shunt Insulation Provision And Qua1 UNINSULATED
Pressure Spring Type And Quantity1 CYLINDRICAL
MaterialMETAL GRAPHITE
Contact Face StyleCONCAVE
Brush Shunt Length0.500 INCHES NOMINAL SINGLE SHUNT
Material Document And ClassificatiMORGANITE INC GRADE C-5H MFR REF SINGLE MATERIAL RESPONSE
Style DesignatorONE PIECE
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 PB-51874-2 available?
We can source PB-51874-2 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 PB-51874-2 by Mission Systems Davenport obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If PB-51874-2 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 PB-51874-2?
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 PB-51874-2?
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.