Electric Boat Corporation · Electronic Components
SP51556CL1
Brush, Electrical Contact
Part NumberSP51556CL1
ManufacturerElectric Boat Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-636-0722 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Body StyleRECTANGULAR COMMUTATOR
Style DesignatorONE PIECE
Angle40.0 DEGREES NOMINAL
Terminal Type And Quantity1 STRAIGHT W/SLOT
Material Document And ClassificatiSPEER CARBON CO,GR E30 MFR REF SINGLE MATERIAL RESPONSE
Thickness0.500 INCHES NOMINAL
Length1.750 INCHES NOMINAL
MaterialELECTROGRAPHITIC
Shunt Insulation Provision And Qua1 UNINSULATED
Terminal Slot Width0.344 INCHES NOMINAL
Top StyleBEVELED FRONT WITH LEFT SHOULDER
Cancelled NSN5977-00-033-5755 (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 SP51556CL1 available?
We can source SP51556CL1 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 SP51556CL1 by Electric Boat Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SP51556CL1 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 SP51556CL1?
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 SP51556CL1?
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.