PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

228038P4Attenuator,fixed

Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems · NSN 5985-00-470-9256 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-470-9256 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-470-9256. Primary manufacturer part number: 228038P4.
Features
  • Attenuator,fixed — FSC 5985
  • Terminal Type and Quantity: 2 CONNECTOR
  • Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ
  • Coaxial Connector Series Designation: SMA
  • Frequency Range: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
  • Rf Signal Attenuation in Decibels: 20.0
  • Power Rating: 2.0 WATTS AVERAGE AND 200.0 WATTS PEAK
  • Output Impedance Rating in Ohms: 50.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-470-9256, 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 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-470-9256
Primary Part Number228038P4
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
StatusACTIVE
Terminal Type and Quantity2 CONNECTOR
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ
Coaxial Connector Series DesignationSMA
Frequency Range0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
Rf Signal Attenuation in Decibels20.0
Power Rating2.0 WATTS AVERAGE AND 200.0 WATTS PEAK
Output Impedance Rating in Ohms50.0
Overall Diameter0.380 INCHES MAXIMUM IN
Attenuation Accuracy in Decibels-0.50 TO 0.50
Input Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Attenuation Accuracy Reference Frequency12.4 GIGAHERTZ
Voltage Standing Wave Ratio1.15 AND 1.30
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIP.
Operating Temp Range-65.0 TO 125.0 CELSIUS DEGC
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-862-7089 INTERCHANGEABLE
Seal,plain Encased
5985-01-332-45943M-2 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control Inc Div Weinschel
Cross-Reference Index
Part NumberManufacturer
1063-41025-40-3 Airbus Defence and Space Limited (GBR)
587-029-015 Elettronica Gmbh (DEU)
1063-41025-40-4 Airbus Defence and Space Limited (GBR)
228038P4 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
4757-20 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
4778-20 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
20-808500-19 General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems (USA)
587-029-015 Elettronica Spa (ITA)
T5985-0049-005 Telephonics Corporation (USA)
Related Parts
5330-00-862-7089INTERCHANGEABLE
SEAL,PLAIN ENCASED
5985-01-332-4594INTERCHANGEABLE
ATTENUATOR,FIXED
3M-2

Frequently Asked Questions

What is NSN 5985-00-470-9256?

NSN 5985-00-470-9256 is a Attenuator,fixed, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-470-9256?

NSN 5985-00-470-9256 has 9 cross-referenced part numbers: 1063-41025-40-3 (Airbus Defence and Space Limited), 587-029-015 (Elettronica Gmbh), 1063-41025-40-4 (Airbus Defence and Space Limited), 228038P4 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 4757-20 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq) and 4 more.

What NSN replaces 5985-00-470-9256?

There are 2 known substitutes for 5985-00-470-9256: 5330-00-862-7089, 5985-01-332-4594. Verify interchangeability with system specifications before substitution.

What are the specifications of 228038P4?

Key specifications for 228038P4: Terminal Type and Quantity: 2 CONNECTOR; Voltage Standing Wave Ratio Frequency Range: +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ; Coaxial Connector Series Designation: SMA; Frequency Range: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM. 18 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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