Kalmar Ac Inc. · Electronic Components
4912291
Brush, Electrical Contact
Part Number4912291
ManufacturerKalmar Ac Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-01-054-1657 (NSN)
Federal Item NameBRUSH,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Radius2.500 INCHES NOMINAL
Thickness0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
Shunt Insulation Provision And Qua2 UNINSULATED
Angle15.0 DEGREES NOMINAL
Material Document And ClassificatiUNION CARBIDE CORP,CARSON PRODUCTS DIV GRADE N-49 MFR REF SINGLE MATERIAL RESPONSE
MaterialCARBON
Terminal Bend Angle60.0 DEGREES NOMINAL
Terminal Type And Quantity1 BENT W/HOLE
Style DesignatorPAIRED
Terminal Hole Diameter0.280 INCHES NOMINAL
Brush Shunt Length3.000 INCHES NOMINAL ALL SHUNTS
Cancelled NSN5977-01-119-2805 (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 4912291 available?
We can source 4912291 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 4912291 by Kalmar Ac Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4912291 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 4912291?
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 4912291?
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.