PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9804-20A0Attenuator,variable

Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc · NSN 5985-01-463-7023 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-463-7023 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-463-7023. Primary manufacturer part number: 9804-20A0.
Features
  • Attenuator,variable — FSC 5985
  • Impedance Rating in Ohms: 50.0 INPUT-OUTPUT
  • Step Position Quantity: 5
  • Power Rating: 5.0 WATTS AVERAGE AND 3.0 WATTS PEAK
  • Adjustment Device Type and Quantity: 1 SLOTTED SCREW
  • Coaxial Connector Series Designation: SMA
  • Terminal Type and Quantity: 2 CONNECTOR, COAXIAL, FEMALE
  • Attenuation Per Step in Decibels: 4.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-463-7023, 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 Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-463-7023
Primary Part Number9804-20A0
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerAntenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc
StatusACTIVE
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Step Position Quantity5
Power Rating5.0 WATTS AVERAGE AND 3.0 WATTS PEAK
Adjustment Device Type and Quantity1 SLOTTED SCREW
Coaxial Connector Series DesignationSMA
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Attenuation Per Step in Decibels4.0
Frequency Range16.000 GIGAHERTZ MINIMUM AND 17.000 GIGAHERTZ MAXIMUM
Overall Attenuation Range in Decibels+0.0 TO 20.0
Insertion Loss at Minimum Attenuation in Maximum Decibels0.5
Attenuation Variation MethodSTEPPED
Application DesignTRANSMISSION LINE
Voltage Standing Wave Ratio1.70
Body StyleCOAXIAL TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-012-0492648690 INTERCHANGEABLE
Packing with Retainer
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
5330-00-154-836324226 INTERCHANGEABLE
Seal,plain Encased
Dressta North America Ltd
3825-00-374-69243540166 INTERCHANGEABLE
Coupling Assembly,s
Sicard a Division of Smi-Snowblast Inc Dba Sicard
5999-00-424-982740-166 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
6625-01-037-0058AM0170 INTERCHANGEABLE
Ammeter
Faria Beede Instruments, Inc. Dba Faria Beede Instruments Inc
6680-01-149-011240166 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
2910-01-291-590240166 INTERCHANGEABLE
Pump,fuel,electrical
Purolator Products Co Div Motor Components, Llc
4820-01-548-131240166 INTERCHANGEABLE
Valve,regulating,system Pressure
Paccar Winch Inc Dba Paccar Winch Division
5310-01-556-555540166 INTERCHANGEABLE
Nut,plain,extended Washer,hexago
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
9804-20A0 PRIMARY Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA)
40166 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
ES8126-01 Drs Sustainment Systems, Inc. (USA)
Related Parts
5330-00-012-0492INTERCHANGEABLE
PACKING WITH RETAINER
648690
5330-00-154-8363INTERCHANGEABLE
SEAL,PLAIN ENCASED
24226
3825-00-374-6924INTERCHANGEABLE
COUPLING ASSEMBLY,S
3540166
5999-00-424-9827INTERCHANGEABLE
CONTACT,ELECTRICAL
40-166
6625-01-037-0058INTERCHANGEABLE
AMMETER
AM0170
6680-01-149-0112INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
40166
2910-01-291-5902INTERCHANGEABLE
PUMP,FUEL,ELECTRICAL
40166
4820-01-548-1312INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
40166
5310-01-556-5555INTERCHANGEABLE
NUT,PLAIN,EXTENDED WASHER,HEXAGO
40166

Frequently Asked Questions

What is NSN 5985-01-463-7023?

NSN 5985-01-463-7023 is a Attenuator,variable, manufactured by Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-463-7023?

NSN 5985-01-463-7023 has 3 cross-referenced part numbers: 9804-20A0 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc), 40166 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), ES8126-01 (Drs Sustainment Systems, Inc.).

What NSN replaces 5985-01-463-7023?

There are 9 known substitutes for 5985-01-463-7023: 5330-00-012-0492, 5330-00-154-8363, 3825-00-374-6924 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9804-20A0?

Key specifications for 9804-20A0: Overall Width: 1.750 INCHES NOMINAL IN; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Step Position Quantity: 5; Power Rating: 5.0 WATTS AVERAGE AND 3.0 WATTS PEAK. 19 total characteristics are documented in the Federal Logistics Information System.

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