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Technical Data Sheet
G300391-1 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

ISOLATOR,RADIO FREQUENCY REFLECT. Key specifications include flange_type: COVER, overall_width: 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN, overall_height: 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, overall_length: 1.925 INCHES MINIMUM IN, fsc_application_data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT, frequency_range_rating: +9.0 TO 9.2 GIGAHERTZ. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-327-3017, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
G300391-1
NSN: 5985-01-327-3017
FSC: 5985
CAGE: 24930 — L3HARRIS TECHNOLOGIES, INC DIV SPACE & AIRBORNE SYSTEMS (USA)
SPECIFICATIONS
flange_typeCOVER
overall_width1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
overall_height0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
overall_length1.925 INCHES MINIMUM IN
flange_quantity1
special_featuresVSWR 1.25; INSERTION LOSS 0.50 DB MAX; ISOLATION 18.0 DB MIN; POWER RATING 5.0 W AVG,5000.0 W PEAK; ALUMINUM; CHEMICAL FILM,PRIMER AND PAINT W
fsc_application_dataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
frequency_range_rating+9.0 TO 9.2 GIGAHERTZ
identification_designatorTYPE UG-135/U
flange_connecting_hole_diameter0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
flange_connection_facility_quantity4
NSN5985-01-327-3017
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ISOLATOR,RADIO FREQUENCY REFLECT TITLE COMPONENT PN G300391-1 MFR ISOLATOR,RADIO FREQUEN
KEY FEATURES
FLANGE TYPE: COVER
FLANGE CONNECTION FACILITY QUANTITY: 4
FREQUENCY RANGE RATING: +9.0 TO 9.2 GIGAHERTZ
FLANGE CONNECTING HOLE DIAMETER: 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.925 INCHES MINIMUM IN
FLANGE TYPECOVER
FLANGE CONNECTION FACILITY QUANTITY4
SPECIAL FEATURESVSWR 1.25; INSERTION LOSS 0.50 DB MAX; ISOLATION 18.0 DB MIN; POWER RATING 5.0 W AVG,5000.0 W PEAK; ALUMINUM; CHEMICAL FILM,PRIMER AND PAINT W
OVERALL WIDTH1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN
OVERALL HEIGHT0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
FREQUENCY RANGE RATING+9.0 TO 9.2 GIGAHERTZ
FLANGE CONNECTING HOLE DIAMETER0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
IDENTIFICATION DESIGNATORTYPE UG-135/U
FSC APPLICATION DATAANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
42371Interchangeable
interchangeable cross-reference
interchangeable
PL369688Interchangeable
interchangeable cross-reference
interchangeable
369688Interchangeable
interchangeable cross-reference
interchangeable
X911Interchangeable
interchangeable cross-reference
interchangeable
SKA4026Interchangeable
interchangeable cross-reference
interchangeable
X911-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G300391-1?
G300391-1 is a ISOLATOR,RADIO FREQUENCY REFLECT.
What parts can replace G300391-1?
There are 18 known substitutes for G300391-1: 42371, PL369688, 369688 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G300391-1?
G300391-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-327-3017. This indicates validated use in U.S. government and defense supply chains.
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