Siemens-Allis Inc. Medium Motor-Generator Div · Electronic Components
53-003-257
Holder Assembly, Electrical Conta
Part Number53-003-257
ManufacturerSiemens-Allis Inc. Medium Motor-Generator Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-978-9676 (NSN)
Federal Item NameHOLDER ASSEMBLY,ELECTRICAL CONTA
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
Total Brush Quantity Accommodated8
Brush Quantity Accommodated Per Ho2
Assembly Grouping PositionCIRCLE
Features ProvidedCONTACT END BEVEL
Holder Quantity Per Assembly4
Brush Pressure Spring Type AccommoHELICAL EXTENSION
Individual Group Holder Quantity1
Holder Group Quantity4
Vendor Part Numbers53-616-281-501
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 53-003-257 available?
We can source 53-003-257 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 53-003-257 by Siemens-Allis Inc. Medium Motor-Generator Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 53-003-257 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 53-003-257?
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 53-003-257?
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.