PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA-04NAttenuator,fixed

Microlab/fxr Llc · NSN 5985-00-569-1365 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-569-1365 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-569-1365. Primary manufacturer part number: AA-04N.
Features
  • Attenuator,fixed — FSC 5985
  • Material: STEEL BODY
  • Output Impedance Rating in Ohms: 50.0
  • Frequency Range: 1.670 GIGAHERTZ MINIMUM AND 1.880 GIGAHERTZ MAXIMUM
  • Rf Signal Attenuation in Decibels: 4.0
  • Input Impedance Rating in Ohms: 50.0
  • Mounting Method: CONNECTOR
  • Terminal Type and Quantity: 2 CONNECTOR
Applications
  • Applications requiring Steel Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-569-1365, 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 Microlab/fxr Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-569-1365
Primary Part NumberAA-04N
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrolab/fxr Llc
StatusACTIVE
MaterialSTEEL BODY
Output Impedance Rating in Ohms50.0
Frequency Range1.670 GIGAHERTZ MINIMUM AND 1.880 GIGAHERTZ MAXIMUM
Rf Signal Attenuation in Decibels4.0
Input Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Terminal Type and Quantity2 CONNECTOR
Attenuation Accuracy in Decibels-0.05 TO 0.05
Overall Diameter0.828 INCHES NOMINAL IN
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Coaxial Connector Series DesignationSMA
Power Rating1.0 WATTS AVERAGE
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2940-00-449-73881739547 INTERCHANGEABLE
Filter Element,intake Air Cleane
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
11-3-4D43R3 Ward Leonard Ct Llc (USA)
AF4 Microlab/fxr Llc (USA)
AA-04N PRIMARY Microlab/fxr Llc (USA)
Related Parts
2940-00-449-7388INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
1739547

Frequently Asked Questions

What is NSN 5985-00-569-1365?

NSN 5985-00-569-1365 is a Attenuator,fixed, manufactured by Microlab/fxr Llc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-569-1365?

NSN 5985-00-569-1365 has 3 cross-referenced part numbers: 11-3-4D43R3 (Ward Leonard Ct Llc), AF4 (Microlab/fxr Llc), AA-04N (Microlab/fxr Llc).

What NSN replaces 5985-00-569-1365?

There is 1 known substitute for 5985-00-569-1365: 2940-00-449-7388. Verify interchangeability with system specifications before substitution.

What are the specifications of AA-04N?

Key specifications for AA-04N: Material: STEEL BODY; Output Impedance Rating in Ohms: 50.0; Frequency Range: 1.670 GIGAHERTZ MINIMUM AND 1.880 GIGAHERTZ MAXIMUM; Rf Signal Attenuation in Decibels: 4.0. 14 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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