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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-D-974663
Shielding Gasket, Electronic
Part NumberSM-D-974663
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-139-5204 (NSN)
Federal Item NameSHIELDING GASKET,ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Overall Width3.980 INCHES MINIMUM AND 4.020 INCHES MAXIMUM
Cross Sectional Shape StyleWIRE AND COMPOSITION
Style DesignatorNON-CIRCULAR
MaterialRUBBER SILICONE CLASS Q ENVIRONMENTAL SEAL
Bolt Hole Quantity22
Outside Edge To Bolt Hole Center D0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
Aperture Length10.320 INCHES MINIMUM AND 11.360 INCHES MAXIMUM
Cross Sectional Height0.125 INCHES NOMINAL
Aperture Width2.980 INCHES MINIMUM AND 3.020 INCHES MAXIMUM
Environmental Protection MaterialTHROUGHOUT RF SHIELDING GASKET
Hole Diameter0.181 INCHES MINIMUM AND 0.186 INCHES MAXIMUM
ESD/EMICode A — ESD/EMI sensitive item
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 SM-D-974663 available?
We can source SM-D-974663 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 SM-D-974663 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-D-974663 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 SM-D-974663?
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 SM-D-974663?
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.