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Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier · Electronic Components
178AS773
Shielding Gasket, Electronic
Part Number178AS773
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier
AvailabilityAvailable to order — request a quote
Specifications
NSN5999-00-165-3673 (NSN)
Federal Item NameSHIELDING GASKET,ELECTRONIC
Federal Supply Class5999 — Miscellaneous Electrical Components
Aperture Length17.050 INCHES MINIMUM AND 17.070 INCHES MAXIMUM
MaterialNICKEL ALLOY 400 EMI/RFI CONDUCTOR
Outside Edge To Bolt Hole Center D0.450 INCHES NOMINAL
Style DesignatorNON-CIRCULAR
Material Document And ClassificatiMIL-S-6855,CLASS 2,GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE ENVIRONMENTAL SEAL
Overall Length18.040 INCHES MINIMUM AND 18.060 INCHES MAXIMUM
Center To Center Distance Between3.890 INCHES NOMINAL
Cross Sectional Shape StyleMESH AND COMPOSITION
Inside Corner Radius0.060 INCHES NOMINAL
Environmental Protection MaterialRF SHIELDING GASKET OUTER EDGE
Outside Corner Radius0.500 INCHES NOMINAL
Vendor Part Numbers44-00179B, 03-0101-8004
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 178AS773 available?
We can source 178AS773 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 178AS773 by Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 178AS773 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 178AS773?
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 178AS773?
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.