PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4771-6Attenuator,fixed

Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq · NSN 5985-00-115-8131 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-115-8131 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-115-8131. Primary manufacturer part number: 4771-6.
Features
  • Attenuator,fixed — FSC 5985
  • Application Design: TRANSMISSION LINE
  • Overall Diameter: 0.375 INCHES NOMINAL IN
  • Rf Signal Attenuation in Decibels: 6.0
  • Power Rating: 2.0 WATTS AVERAGE AND 200.0 WATTS PEAK
  • Terminal Type and Quantity: 2 CONNECTOR
  • Frequency Range: 0.000 HERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM
  • Output Impedance Rating in Ohms: 50.0
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-115-8131, 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 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-115-8131
Primary Part Number4771-6
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
StatusACTIVE
Application DesignTRANSMISSION LINE
Overall Diameter0.375 INCHES NOMINAL IN
Rf Signal Attenuation in Decibels6.0
Power Rating2.0 WATTS AVERAGE AND 200.0 WATTS PEAK
Terminal Type and Quantity2 CONNECTOR
Frequency Range0.000 HERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM
Output Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio1.25 AND 1.40
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Input Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 6.0 GIGAHERTZ
Coaxial Connector Series DesignationSMA
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Mounting MethodCONNECTOR
MaterialCOPPER ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-834-9307477-16 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
4310-00-989-338347716 INTERCHANGEABLE
Sleeve,seal
Jenny Products, Inc
4820-01-005-0592 INTERCHANGEABLE
Valve,globe
5999-01-306-9541 INTERCHANGEABLE
Contact,electrical
Cross-Reference Index
Part NumberManufacturer
4771-6 PRIMARY Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
224241-002 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
Related Parts
5340-00-834-9307INTERCHANGEABLE
CLAMP,LOOP
477-16
4310-00-989-3383INTERCHANGEABLE
SLEEVE,SEAL
47716
4820-01-005-0592INTERCHANGEABLE
VALVE,GLOBE
5999-01-306-9541INTERCHANGEABLE
CONTACT,ELECTRICAL

Frequently Asked Questions

What is NSN 5985-00-115-8131?

NSN 5985-00-115-8131 is a Attenuator,fixed, manufactured by Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-115-8131?

NSN 5985-00-115-8131 has 2 cross-referenced part numbers: 4771-6 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 224241-002 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems).

What NSN replaces 5985-00-115-8131?

There are 4 known substitutes for 5985-00-115-8131: 5340-00-834-9307, 4310-00-989-3383, 4820-01-005-0592 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4771-6?

Key specifications for 4771-6: Application Design: TRANSMISSION LINE; Overall Diameter: 0.375 INCHES NOMINAL IN; Rf Signal Attenuation in Decibels: 6.0; Power Rating: 2.0 WATTS AVERAGE AND 200.0 WATTS PEAK. 16 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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