PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10559849-10Attenuator,fixed

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · NSN 5985-00-021-6449 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-021-6449 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-021-6449. Primary manufacturer part number: 10559849-10.
Features
  • Attenuator,fixed — FSC 5985
  • Precious Material and Location: BODY SURFACE SILVER
  • Precious Material: SILVER
  • Output Impedance Rating in Ohms: 50.0
  • Attenuation Accuracy Reference Frequency: 4.5 GIGAHERTZ
  • Rf Signal Attenuation in Decibels: 4.0
  • Overall Diameter: 0.580 INCHES NOMINAL IN
  • Connection Type Per Function: FEMALE INPUT AND MALE OUTPUT
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-021-6449, 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 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-021-6449
Primary Part Number10559849-10
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerCombat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
StatusACTIVE
Precious Material and LocationBODY SURFACE SILVER
Precious MaterialSILVER
Output Impedance Rating in Ohms50.0
Attenuation Accuracy Reference Frequency4.5 GIGAHERTZ
Rf Signal Attenuation in Decibels4.0
Overall Diameter0.580 INCHES NOMINAL IN
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Terminal Type and Quantity2 CONNECTOR
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.5 GIGAHERTZ
Power Rating1.0 WATTS AVERAGE
Mounting MethodCONNECTOR
Attenuation Accuracy in Decibels-0.40 TO 0.40
Voltage Standing Wave Ratio1.25
Input Impedance Rating in Ohms50.0
Frequency Range0.000 HERTZ MINIMUM AND 4.500 GIGAHERTZ MAXIMUM
Coaxial Connector Series DesignationBNC
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Application DesignTRANSMISSION LINE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Surface TreatmentSILVER BODY
MaterialCOPPER ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5925-00-109-1793PSM30 INTERCHANGEABLE
Circuit Breaker
Sensata Technologies, Inc. Div Sensata Attleboro
2530-00-352-6962808769 INTERCHANGEABLE
Brake Drum
Am General Llc
5340-00-361-28815B3224 INTERCHANGEABLE
Clamp,loop
Caterpillar Inc Div Caterpillar Defense
6130-01-168-7016 INTERCHANGEABLE
Power Supply Subassembly
5998-01-287-517260042 INTERCHANGEABLE
Electronic Components Assembly
Orbit International Corp. Div Orbit Instrument
3110-01-474-5690F150513 INTERCHANGEABLE
Bearing,ball,annular
Oerlikon Metco Us Inc
1240-01-589-1930111894R INTERCHANGEABLE
Telescope Subassembly
Leupold & Stevens Inc
Cross-Reference Index
Part NumberManufacturer
AB-04B Microlab/fxr Llc (USA)
50SP4-560 Alan Industries Inc (USA)
5985000216449 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
10559849-10 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
9217C0009-10 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
9217C0009-10 Lockheed Corp Lockheed Electronics Co Inc (USA)
FXRAB-04B Microlab/fxr Llc (USA)
600-4-2 Meca Electronics Inc (USA)
Related Parts
5925-00-109-1793INTERCHANGEABLE
CIRCUIT BREAKER
PSM30
2530-00-352-6962INTERCHANGEABLE
BRAKE DRUM
808769
5340-00-361-2881INTERCHANGEABLE
CLAMP,LOOP
5B3224
6130-01-168-7016INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
5998-01-287-5172INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
60042
3110-01-474-5690INTERCHANGEABLE
BEARING,BALL,ANNULAR
F150513
1240-01-589-1930INTERCHANGEABLE
TELESCOPE SUBASSEMBLY
111894R

Frequently Asked Questions

What is NSN 5985-00-021-6449?

NSN 5985-00-021-6449 is a Attenuator,fixed, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-021-6449?

NSN 5985-00-021-6449 has 8 cross-referenced part numbers: AB-04B (Microlab/fxr Llc), 50SP4-560 (Alan Industries Inc), 5985000216449 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 10559849-10 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 9217C0009-10 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems) and 3 more.

What NSN replaces 5985-00-021-6449?

There are 7 known substitutes for 5985-00-021-6449: 5925-00-109-1793, 2530-00-352-6962, 5340-00-361-2881 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10559849-10?

Key specifications for 10559849-10: Precious Material and Location: BODY SURFACE SILVER; Precious Material: SILVER; Output Impedance Rating in Ohms: 50.0; Attenuation Accuracy Reference Frequency: 4.5 GIGAHERTZ. 22 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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