PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5729-20Attenuator,fixed

Spectrum Control Inc Div Weinschel · NSN 5985-00-454-6924 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-454-6924 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-454-6924. Primary manufacturer part number: 5729-20.
Features
  • Attenuator,fixed — FSC 5985
  • Application Design: TRANSMISSION LINE
  • Material: STEEL CORROSION RESISTING BODY
  • Surface Treatment: PASSIVATE BODY
  • Precious Material: GOLD
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Precious Material and Location: CONTACT SURFACES GOLD
  • Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Applications
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-454-6924, 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 Spectrum Control Inc Div Weinschel. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5985-00-454-6924
Primary Part Number5729-20
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerSpectrum Control Inc Div Weinschel
StatusCANCELLED
Application DesignTRANSMISSION LINE
MaterialSTEEL CORROSION RESISTING BODY
Surface TreatmentPASSIVATE BODY
Precious MaterialGOLD
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Precious Material and LocationCONTACT SURFACES GOLD
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Power Rating5.0 WATTS AVERAGE AND 1.0 KILOWATTS PEAK
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Attenuation Accuracy Reference Frequency18.0 GIGAHERTZ
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Input Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Attenuation Accuracy in Decibels-0.50 TO 0.50
Rf Signal Attenuation in Decibels20.0
Unpackaged Unit Weight2.600 OUNCES OZ
Voltage Standing Wave Ratio1.15 AND 1.20 AND 1.25 AND 1.40
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Coaxial Connector Series DesignationN
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ
Overall Diameter0.840 INCHES MAXIMUM IN
Terminal Type and Quantity2 CONNECTOR
Output Impedance Rating in Ohms50.0
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5995-00-064-6866572920 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Hamilton Sundstrand Corporation Dba Collins Aerospace
6532-00-192-75394216 INTERCHANGEABLE
Cap,operating,surgical
Johnson and Johnson Medical Inc Sub of Johnson and Johnson
5961-00-497-0895 INTERCHANGEABLE
Transistor
3120-00-661-7983220N INTERCHANGEABLE
Bearing,sleeve
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Cross-Reference Index
Part NumberManufacturer
2-20 France Aerospace Sarl (FRA)
50MP20-944 Alan Industries Inc (USA)
5729-20 PRIMARY Spectrum Control Inc Div Weinschel (USA)
91422295 Thales Sa (FRA)
ATT-0389-20-000-02 Cinch Connectivity Solutions Inc (USA)
2-20 Spectrum Control Inc Div Weinschel (USA)
91422295 Thales Las France SAS (FRA)
2-20N Spectrum Control Inc Div Weinschel (USA)
50HF-020-N Jfw Industries Incorporated Dba Jfw Industries Inc (USA)
8491B0PT20 Hewlett-Packard Company Dba HP (USA)
18N-20-436 Spectrum Control, Inc. (USA)
8491B20DB Keysight Technologies, Inc. (USA)
VA-07-1665 Leonardo Uk Ltd (GBR)
VA-07-1665-001 Leonardo Uk Ltd (GBR)
GO03975 Dm Systems Group Limited (GBR)
8491B0PT20 Keysight Technologies, Inc. (USA)
5985PL1628511 Jednolity Indeks Materialowy - Uniform Material Index (POL)
8491B0PT20 Keysight Technologies Inc (USA)
8491B20DB Keysight Technologies Inc (USA)
ATT-0389-20-NNN-02 Cinch Connectivity Solutions Inc (USA)
Related Parts
5995-00-064-6866INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
572920
6532-00-192-7539INTERCHANGEABLE
CAP,OPERATING,SURGICAL
4216
5961-00-497-0895INTERCHANGEABLE
TRANSISTOR
3120-00-661-7983INTERCHANGEABLE
BEARING,SLEEVE
220N

Frequently Asked Questions

What is NSN 5985-00-454-6924?

NSN 5985-00-454-6924 is a Attenuator,fixed, manufactured by Spectrum Control Inc Div Weinschel, classified under FSC 5985 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5985-00-454-6924?

NSN 5985-00-454-6924 has 28 cross-referenced part numbers: 2-20 (France Aerospace Sarl), 50MP20-944 (Alan Industries Inc), 5729-20 (Spectrum Control Inc Div Weinschel), 91422295 (Thales Sa), ATT-0389-20-000-02 (Cinch Connectivity Solutions Inc) and 23 more.

What NSN replaces 5985-00-454-6924?

There are 4 known substitutes for 5985-00-454-6924: 5995-00-064-6866, 6532-00-192-7539, 5961-00-497-0895 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5729-20?

Key specifications for 5729-20: Application Design: TRANSMISSION LINE; Material: STEEL CORROSION RESISTING BODY; Surface Treatment: PASSIVATE BODY; Precious Material: GOLD. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5985-00-454-6924 still in active supply?

NSN 5985-00-454-6924 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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