L3Harris Technologies · Electronic Components
G300391-1
Isolator, Radio Frequency Reflect
Part NumberG300391-1
ManufacturerL3Harris Technologies
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-327-3017 (NSN)
Federal Item NameISOLATOR,RADIO FREQUENCY REFLECT
Federal Supply Class5985 — Antennas and Waveguides
Overall Length1.925 INCHES MINIMUM
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Flange TypeCOVER
Flange Connecting Hole Diameter0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM OVERALL
Flange Connection Facility Quantit4 OVERALL
Identification DesignatorTYPE UG-135/U
Overall Width1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM
Overall Height0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
Frequency Range Rating+9.0 TO 9.2 GIGAHERTZ
Flange Quantity1
Vendor Part NumbersXM360
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 G300391-1 available?
We can source G300391-1 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 G300391-1 by L3Harris Technologies obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If G300391-1 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 G300391-1?
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 G300391-1?
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.