PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-3933/25Attenuator,fixed

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5985-01-352-8553 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-352-8553 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-352-8553. Primary manufacturer part number: MIL-DTL-3933/25.
Features
  • Attenuator,fixed — FSC 5985
  • Material: COPPER ALLOY BODY
  • Voltage Standing Wave Ratio: 1.10 AND 1.15 AND 1.20 AND 1.25 AND 1.35
  • Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Rf Signal Attenuation in Decibels: 10.0
  • Connection Type Per Function: MALE INPUT AND FEMALE OUTPUT
  • Output Impedance Rating in Ohms: 50.0
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-352-8553, 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 20 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-352-8553
Primary Part NumberMIL-DTL-3933/25
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
MaterialCOPPER ALLOY BODY
Voltage Standing Wave Ratio1.10 AND 1.15 AND 1.20 AND 1.25 AND 1.35
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Rf Signal Attenuation in Decibels10.0
Connection Type Per FunctionMALE INPUT AND FEMALE OUTPUT
Output Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio Frequency Range+0.0 TO 2.0 GIGAHERTZ AND +2.0 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
Coaxial Connector Series DesignationSMA
Attenuation Accuracy in Decibels-0.50 TO 0.50
Power Rating2.0 WATTS AVERAGE AND 500.0 WATTS PEAK
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Overall Diameter0.260 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
Terminal Type and Quantity2 CONNECTOR
Input Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Application DesignTRANSMISSION LINE
Specification/standard Data81349-MIL-A-3933/25 GOVERNMENT SPECIFICATION
Test Data Document81349-MIL-A-3933 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.).
Surface TreatmentCADMIUM BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5985-01-040-4184 INTERCHANGEABLE
Attenuator,fixed
5985-01-144-2398 INTERCHANGEABLE
Attenuator,fixed
5985-01-228-9810 INTERCHANGEABLE
Attenuator,fixed
5985-01-237-7355 INTERCHANGEABLE
Attenuator,fixed
5985-01-326-7687 INTERCHANGEABLE
Attenuator,fixed
5985-01-326-7689 INTERCHANGEABLE
Attenuator,fixed
5985-01-328-1404 INTERCHANGEABLE
Attenuator,fixed
5985-01-332-5737 INTERCHANGEABLE
Attenuator,fixed
5985-01-352-8555 INTERCHANGEABLE
Attenuator,fixed
5985-01-352-8556 INTERCHANGEABLE
Attenuator,fixed
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-3933/25 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-A-3933 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M3933/25-78N Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5985-01-040-4184INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-144-2398INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-228-9810INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-237-7355INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-326-7687INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-326-7689INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-328-1404INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-332-5737INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-352-8555INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-352-8556INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-353-1527INTERCHANGEABLE
ATTENUATOR,FIXED
5985-01-406-7253INTERCHANGEABLE
ATTENUATOR,FIXED

Frequently Asked Questions

What is NSN 5985-01-352-8553?

NSN 5985-01-352-8553 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 5985-01-352-8553?

NSN 5985-01-352-8553 has 3 cross-referenced part numbers: MIL-DTL-3933/25 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-A-3933 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M3933/25-78N (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5985-01-352-8553?

There are 12 known substitutes for 5985-01-352-8553: 5985-01-040-4184, 5985-01-144-2398, 5985-01-228-9810 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-3933/25?

Key specifications for MIL-DTL-3933/25: Material: COPPER ALLOY BODY; Voltage Standing Wave Ratio: 1.10 AND 1.15 AND 1.20 AND 1.25 AND 1.35; Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC. 21 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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