Kearfott Corporation · Electronic Components
U1128
Brush, Electrical Contact
Part NumberU1128
ManufacturerKearfott Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-280-8450 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Body StyleRECTANGULAR COMMUTATOR
Shunt Position Designator8
Convex Radius0.188 INCHES NOMINAL
Brush Shunt Length3.750 INCHES NOMINAL SINGLE SHUNT
Contact Face StyleFLAT
Top StyleCONVEX
Material Document And ClassificatiMORGANITE INC GRADE EC11 MFR REF SINGLE MATERIAL RESPONSE
Terminal Type And Quantity1 STRAIGHT W/SLOT
MaterialELECTROGRAPHITIC
Style DesignatorONE PIECE
Shunt Insulation Provision And Qua1 UNINSULATED
Vendor Part Numbers704885
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 U1128 available?
We can source U1128 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 U1128 by Kearfott Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If U1128 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 U1128?
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 U1128?
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.