Mission Systems Davenport Inc. · Electronic Components
MAR320
Ring, Electrical Contact
Part NumberMAR320
ManufacturerMission Systems Davenport Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5977-00-411-2228 (NSN)
Federal Item NameRING,ELECTRICAL CONTACT
Federal Supply Class5977 — Electrical Contact Brushes and Electrodes
ShapeDISK
Inside Diameter1.250 INCHES NOMINAL
Outside Diameter1.345 INCHES NOMINAL
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 MAR320 available?
We can source MAR320 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 MAR320 by Mission Systems Davenport Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MAR320 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 MAR320?
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 MAR320?
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.