PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-A-3933/6Attenuator,fixed

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5985-00-947-8269 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-947-8269 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-947-8269. Primary manufacturer part number: MIL-A-3933/6.
Features
  • Attenuator,fixed — FSC 5985
  • Material: STEEL BODY
  • Test Data Document: 81349-MIL-A-3933-6 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Terminal Type and Quantity: 2 CONNECTOR
  • Rf Signal Attenuation in Decibels: 20.0
  • Voltage Standing Wave Ratio: 1.15
  • Operating Temp Range: -55.0 TO 85.0 CELSIUS DEGC
  • Mounting Method: CONNECTOR
Applications
  • Applications requiring Steel Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-947-8269, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-947-8269
Primary Part NumberMIL-A-3933/6
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialSTEEL BODY
Test Data Document81349-MIL-A-3933-6 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Terminal Type and Quantity2 CONNECTOR
Rf Signal Attenuation in Decibels20.0
Voltage Standing Wave Ratio1.15
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Mounting MethodCONNECTOR
Coaxial Connector Series DesignationN
Overall Diameter0.781 INCHES MAXIMUM IN
Output Impedance Rating in Ohms50.0
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Power Rating1.0 WATTS AVERAGE AND 1.0 WATTS PEAK
Frequency Range0.000 HERTZ MINIMUM AND 1.500 GIGAHERTZ MAXIMUM
Input Impedance Rating in Ohms50.0
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5985-00-045-5527 INTERCHANGEABLE
Attenuator,fixed
5985-00-928-1557 INTERCHANGEABLE
Attenuator,fixed
5985-01-228-6968 INTERCHANGEABLE
Attenuator,fixed
Cross-Reference Index
Part NumberManufacturer
MIL-A-3933/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CN-39B/U Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CN39AU Joint Electronics Type Designation System (USA)
CN39U Joint Electronics Type Designation System (USA)
M3933/6-9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5985-00-045-5527INTERCHANGEABLE
ATTENUATOR,FIXED
5985-00-928-1557INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-228-6968INTERCHANGEABLE
ATTENUATOR,FIXED

Frequently Asked Questions

What is NSN 5985-00-947-8269?

NSN 5985-00-947-8269 is a Attenuator,fixed, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-947-8269?

NSN 5985-00-947-8269 has 5 cross-referenced part numbers: MIL-A-3933/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CN-39B/U (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CN39AU (Joint Electronics Type Designation System), CN39U (Joint Electronics Type Designation System), M3933/6-9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5985-00-947-8269?

There are 3 known substitutes for 5985-00-947-8269: 5985-00-045-5527, 5985-00-928-1557, 5985-01-228-6968. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-A-3933/6?

Key specifications for MIL-A-3933/6: Material: STEEL BODY; Test Data Document: 81349-MIL-A-3933-6 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Terminal Type and Quantity: 2 CONNECTOR; Overall Length: 4.375 INCHES MAXIMUM IN. 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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