Northrop Grumman Corp. Electronic Systems Defensive System Div · Electronic Components
303658
Shielding Gasket, Electronic
Part Number303658
ManufacturerNorthrop Grumman Corp. Electronic Systems Defensive System Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-01-173-7234 (NSN)
Federal Item NameSHIELDING GASKET,ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Surface TreatmentANODIZE AND CHROMATE EMI/RFI CONDUCTOR
Material Document And ClassificatiQQ-A-250/11,6061-T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A200/8,6061-T6 FED SPEC SINGLE MATERIAL RESPONSE EMI/RFI CO
MaterialALUMINUM ALLOY 6061 EMI/RFI CONDUCTOR
Surface Treatment Document And ClaMIL-A-8625,TYPE2,CLASS2 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541,CLASS 3 MIL SPEC 2ND TREATMENT RESPONSE EMI/RFI
Aperture Diameter6.943 INCHES NOMINAL
Cross Sectional Height0.406 INCHES NOMINAL
Bolt Circle Diameter7.068 INCHES NOMINAL
Hole Diameter0.140 INCHES NOMINAL
Cross Sectional Shape StyleEMI
Outside Diameter7.068 INCHES NOMINAL
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 303658 available?
We can source 303658 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 303658 by Northrop Grumman Corp. Electronic Systems Defensive System Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 303658 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 303658?
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 303658?
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.