PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AD30NAttenuator,fixed

Microlab/fxr Llc · NSN 5985-00-445-6954 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-445-6954 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-445-6954. Primary manufacturer part number: AD30N.
Features
  • Attenuator,fixed — FSC 5985
  • Application Design: TRANSMISSION LINE
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • Input Impedance Rating in Ohms: 50.0
  • Coaxial Connector Series Designation: N
  • Rf Signal Attenuation in Decibels: 30.0
  • Power Rating: 15.0 WATTS AVERAGE
  • Overall Diameter: 1.000 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-445-6954, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-445-6954
Primary Part NumberAD30N
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrolab/fxr Llc
StatusACTIVE
Application DesignTRANSMISSION LINE
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Input Impedance Rating in Ohms50.0
Coaxial Connector Series DesignationN
Rf Signal Attenuation in Decibels30.0
Power Rating15.0 WATTS AVERAGE
Overall Diameter1.000 INCHES NOMINAL IN
Frequency Range0.000 HERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM
Terminal Type and Quantity2 CONNECTOR
Mounting MethodTERMINAL
Connection Type Per FunctionFEMALE OUTPUT AND FEMALE INPUT AND MALE OUTPUT AND MALE INPUT
Output Impedance Rating in Ohms50.0
FSC Application DataTEST SET,ELECTRONIC SYSTEMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4330-00-069-6393A31-1-1 INTERCHANGEABLE
Filter Element,fluid
King Engineering Corporation Dba King-Gage Systems
5330-00-285-364521158-1668 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
2920-00-733-4931 INTERCHANGEABLE
Drive,engine,electrical Starter
5330-00-772-0161 INTERCHANGEABLE
Seal,plain Encased
5915-01-062-8671192271-1 INTERCHANGEABLE
Filter,radio Frequency Interfere
Raytheon Company Dba Raytheon Co
3020-01-251-5896A3111-1 INTERCHANGEABLE
Gear,spur
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
Cross-Reference Index
Part NumberManufacturer
1228016P5 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
A-3111 Microlab/fxr Llc (USA)
AD30N PRIMARY Microlab/fxr Llc (USA)
Related Parts
4330-00-069-6393INTERCHANGEABLE
FILTER ELEMENT,FLUID
A31-1-1
5330-00-285-3645INTERCHANGEABLE
SEAL,PLAIN ENCASED
21158-1668
2920-00-733-4931INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
5330-00-772-0161INTERCHANGEABLE
SEAL,PLAIN ENCASED
5915-01-062-8671INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
192271-1
3020-01-251-5896INTERCHANGEABLE
GEAR,SPUR
A3111-1

Frequently Asked Questions

What is NSN 5985-00-445-6954?

NSN 5985-00-445-6954 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 5985-00-445-6954?

NSN 5985-00-445-6954 has 3 cross-referenced part numbers: 1228016P5 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), A-3111 (Microlab/fxr Llc), AD30N (Microlab/fxr Llc).

What NSN replaces 5985-00-445-6954?

There are 6 known substitutes for 5985-00-445-6954: 4330-00-069-6393, 5330-00-285-3645, 2920-00-733-4931 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AD30N?

Key specifications for AD30N: Application Design: TRANSMISSION LINE; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Input Impedance Rating in Ohms: 50.0; Coaxial Connector Series Designation: N. 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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