PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G300009S5Attenuator,fixed

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-00-845-4395 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-845-4395 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-845-4395. Primary manufacturer part number: G300009S5.
Features
  • Attenuator,fixed — FSC 5985
  • Surface Treatment: SILVER BODY
  • FSC Application Data: ANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • Precious Material: SILVER
  • Voltage Standing Wave Ratio: 1.25
  • Rf Signal Attenuation in Decibels: 20.0
  • Terminal Type and Quantity: 2 CONNECTOR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-845-4395, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5985-00-845-4395
Primary Part NumberG300009S5
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusCANCELLED
Surface TreatmentSILVER BODY
FSC Application DataANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Precious MaterialSILVER
Voltage Standing Wave Ratio1.25
Rf Signal Attenuation in Decibels20.0
Terminal Type and Quantity2 CONNECTOR
Unpackaged Unit Weight2.500 OUNCES OZ
Coaxial Connector Series DesignationBNC
Precious Material and LocationBODY SURFACES SILVER
Operating Temp Range+0.0 TO 75.0 CELSIUS DEGC
Frequency Range0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Overall Diameter0.625 INCHES MAXIMUM IN
Output Impedance Rating in Ohms50.0
Input Impedance Rating in Ohms50.0
Power Rating500.0 MILLIWATTS AVERAGE
Mounting MethodCONNECTOR
Attenuation Accuracy in Decibels-0.50 TO 0.50
Attenuation Accuracy Reference Frequency2.5 GIGAHERTZ
Voltage Standing Wave Ratio Frequency Range+0.0 TO 2.5 GIGAHERTZ
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5340-00-186-3412 INTERCHANGEABLE
Clamp,loop
3230-00-217-710175-530 INTERCHANGEABLE
Blade,jig Saw,woodworking
Black and Decker Us Inc
4920-00-475-8163 INTERCHANGEABLE
Valve Assembly,push
5985-01-089-6160AA-20B INTERCHANGEABLE
Attenuator,fixed
Microlab/fxr Llc
5315-01-138-7663 INTERCHANGEABLE
Pin,straight,headed
Cross-Reference Index
Part NumberManufacturer
755-20 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
G300009S5 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
AA-20B Microlab/fxr Llc (USA)
GA810DD20 Northrop Grumman Systems Corporation (USA)
666193-665 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
G300009 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
755B-20 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
755-20DB Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
A421AS Caes Systems Llc (USA)
AA-E27 Microlab/fxr Llc (USA)
A420B Caes Systems Llc (USA)
Related Parts
5340-00-186-3412INTERCHANGEABLE
CLAMP,LOOP
3230-00-217-7101INTERCHANGEABLE
BLADE,JIG SAW,WOODWORKING
75-530
4920-00-475-8163INTERCHANGEABLE
VALVE ASSEMBLY,PUSH
5985-01-089-6160INTERCHANGEABLE
ATTENUATOR,FIXED
AA-20B
5315-01-138-7663INTERCHANGEABLE
PIN,STRAIGHT,HEADED

Frequently Asked Questions

What is NSN 5985-00-845-4395?

NSN 5985-00-845-4395 is a Attenuator,fixed, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5985-00-845-4395?

NSN 5985-00-845-4395 has 11 cross-referenced part numbers: 755-20 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), G300009S5 (L3harris Technologies, Inc Div Space & Airborne Systems), AA-20B (Microlab/fxr Llc), GA810DD20 (Northrop Grumman Systems Corporation), 666193-665 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc) and 6 more.

What NSN replaces 5985-00-845-4395?

There are 5 known substitutes for 5985-00-845-4395: 5340-00-186-3412, 3230-00-217-7101, 4920-00-475-8163 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G300009S5?

Key specifications for G300009S5: Surface Treatment: SILVER BODY; FSC Application Data: ANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Precious Material: SILVER. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5985-00-845-4395 still in active supply?

NSN 5985-00-845-4395 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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