PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AD-03NAttenuator,fixed

Microlab/fxr Llc · NSN 5985-00-739-1212 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-739-1212 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-739-1212. Primary manufacturer part number: AD-03N.
Features
  • Attenuator,fixed — FSC 5985
  • Precious Material and Location: EXTERNAL SURFACES SILVER
  • Surface Treatment: ANODIZE BODY
  • Precious Material: SILVER
  • Material: ALUMINUM BODY
  • Surface Treatment: SILVER TERMINAL
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Material: COPPER ALLOY TERMINAL
Applications
  • Applications requiring Aluminum Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-739-1212, 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 25 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-739-1212
Primary Part NumberAD-03N
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrolab/fxr Llc
StatusACTIVE
Precious Material and LocationEXTERNAL SURFACES SILVER
Surface TreatmentANODIZE BODY
Precious MaterialSILVER
MaterialALUMINUM BODY
Surface TreatmentSILVER TERMINAL
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
MaterialCOPPER ALLOY TERMINAL
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Power Rating15.0 WATTS AVERAGE AND 2.0 KILOWATTS PEAK
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ
Unpackaged Unit Weight3.900 OUNCES OZ
Overall Diameter1.000 INCHES NOMINAL IN
Output Impedance Rating in Ohms50.0
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Frequency Range0.000 HERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio1.20
Attenuation Accuracy Reference Frequency4.0 GIGAHERTZ
Input Impedance Rating in Ohms50.0
Terminal Type and Quantity2 CONNECTOR
Mounting MethodCONNECTOR
Connection Type Per FunctionFEMALE OUTPUT AND MALE INPUT
Coaxial Connector Series DesignationN
Attenuation Accuracy in Decibels-0.50 TO 0.50
Rf Signal Attenuation in Decibels3.0
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5325-00-202-1604 INTERCHANGEABLE
Grommet,nonmetallic
7105-00-935-0430 INTERCHANGEABLE
Support,top,leg,right L
5975-01-069-21962573 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
1615-01-079-36662573 INTERCHANGEABLE
Plate,tail Rotor Su
Marvel Manufacturing Co Div the Marvel Manufacturing Company
5910-01-096-54792573 INTERCHANGEABLE
Capacitor
Crown Audio, Inc. Dba Crown International
4320-01-241-4419 INTERCHANGEABLE
Impeller,pump,centrifugal
5140-01-351-5113J2573 INTERCHANGEABLE
Holder,socket Wrench
The Stanley Works Dba Stanley Proto
6625-01-395-4995A3142414 INTERCHANGEABLE
Indicator,phase Sequence
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-01-575-18232573 INTERCHANGEABLE
Connector,plug,electrical
Hydraulics International, Inc. Dba Hydraulics International Inc
6105-01-589-9700 INTERCHANGEABLE
Cover,electric Motor
Cross-Reference Index
Part NumberManufacturer
AD-03N PRIMARY Microlab/fxr Llc (USA)
2573 Microwave Filter Co Inc (USA)
Related Parts
5325-00-202-1604INTERCHANGEABLE
GROMMET,NONMETALLIC
7105-00-935-0430INTERCHANGEABLE
SUPPORT,TOP,LEG,RIGHT L
5975-01-069-2196INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2573
1615-01-079-3666INTERCHANGEABLE
PLATE,TAIL ROTOR SU
2573
5910-01-096-5479INTERCHANGEABLE
CAPACITOR
2573
4320-01-241-4419INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
5140-01-351-5113INTERCHANGEABLE
HOLDER,SOCKET WRENCH
J2573
6625-01-395-4995INTERCHANGEABLE
INDICATOR,PHASE SEQUENCE
A3142414
5935-01-575-1823INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2573
6105-01-589-9700INTERCHANGEABLE
COVER,ELECTRIC MOTOR
2590-01-608-6565INTERCHANGEABLE
RAIL ASSEMBLY,CURBS
2573

Frequently Asked Questions

What is NSN 5985-00-739-1212?

NSN 5985-00-739-1212 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 5985-00-739-1212?

NSN 5985-00-739-1212 has 2 cross-referenced part numbers: AD-03N (Microlab/fxr Llc), 2573 (Microwave Filter Co Inc).

What NSN replaces 5985-00-739-1212?

There are 11 known substitutes for 5985-00-739-1212: 5325-00-202-1604, 7105-00-935-0430, 5975-01-069-2196 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AD-03N?

Key specifications for AD-03N: Precious Material and Location: EXTERNAL SURFACES SILVER; Surface Treatment: ANODIZE BODY; Precious Material: SILVER; Material: ALUMINUM BODY. 26 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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