PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3933/18Attenuator,fixed

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5985-01-396-8585 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-396-8585 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-396-8585. Primary manufacturer part number: MIL-DTL-3933/18.
Features
  • Attenuator,fixed — FSC 5985
  • Connection Type Per Function: MALE INPUT AND FEMALE OUTPUT
  • Voltage Standing Wave Ratio: 1.25
  • Coaxial Connector Series Designation: N
  • Output Impedance Rating in Ohms: 50.0
  • Rf Signal Attenuation in Decibels: 13.0
  • Input Impedance Rating in Ohms: 50.0
  • Operating Temp Range: -25.0 TO 125.0 CELSIUS DEGC
Applications
  • Applications requiring Aluminum Alloy or Beryllium Copper (use Cub000) Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-396-8585, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-396-8585
Primary Part NumberMIL-DTL-3933/18
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
Connection Type Per FunctionMALE INPUT AND FEMALE OUTPUT
Voltage Standing Wave Ratio1.25
Coaxial Connector Series DesignationN
Output Impedance Rating in Ohms50.0
Rf Signal Attenuation in Decibels13.0
Input Impedance Rating in Ohms50.0
Operating Temp Range-25.0 TO 125.0 CELSIUS DEGC
Terminal Type and Quantity2 CONNECTOR
Power Rating5.0 WATTS AVERAGE AND 1.0 KILOWATTS PEAK
Voltage Standing Wave Ratio Frequency Range+0.0 TO 12.4 GIGAHERTZ
Frequency Range0.000 GIGAHERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Overall Diameter0.840 INCHES MAXIMUM IN
Application DesignTRANSMISSION LINE
MaterialALUMINUM ALLOY OR BERYLLIUM COPPER (USE CUB000) BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5985-00-817-8431 INTERCHANGEABLE
Attenuator,fixed
5985-01-037-1726 INTERCHANGEABLE
Attenuator,fixed
5985-01-037-1727 INTERCHANGEABLE
Attenuator,fixed
5985-01-041-6605 INTERCHANGEABLE
Attenuator,fixed
5985-01-048-0174 INTERCHANGEABLE
Attenuator,fixed
5985-01-234-845810146-30 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control Inc Div Weinschel
5985-01-433-9173 INTERCHANGEABLE
Attenuator,fixed
5985-01-486-1968 INTERCHANGEABLE
Attenuator,fixed
5985-01-667-6230 INTERCHANGEABLE
Attenuator,fixed
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3933/18 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M3933/18-15S Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-A-3933/18 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5985-00-817-8431INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-037-1726INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-037-1727INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-041-6605INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-048-0174INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-234-8458INTERCHANGEABLE
ATTENUATOR,FIXED
10146-30
5985-01-433-9173INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-486-1968INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-667-6230INTERCHANGEABLE
ATTENUATOR,FIXED

Frequently Asked Questions

What is NSN 5985-01-396-8585?

NSN 5985-01-396-8585 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 5985-01-396-8585?

NSN 5985-01-396-8585 has 3 cross-referenced part numbers: MIL-DTL-3933/18 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M3933/18-15S (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-A-3933/18 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5985-01-396-8585?

There are 9 known substitutes for 5985-01-396-8585: 5985-00-817-8431, 5985-01-037-1726, 5985-01-037-1727 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3933/18?

Key specifications for MIL-DTL-3933/18: Connection Type Per Function: MALE INPUT AND FEMALE OUTPUT; Voltage Standing Wave Ratio: 1.25; Coaxial Connector Series Designation: N; Output Impedance Rating in Ohms: 50.0. 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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