PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8491A-010Attenuator,fixed

Keysight Technologies Inc · NSN 5985-00-865-0108 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-865-0108 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-865-0108. Primary manufacturer part number: 8491A-010.
Features
  • Attenuator,fixed — FSC 5985
  • Material: STEEL CORROSION RESISTING BODY
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • Terminal Type and Quantity: 2 CONNECTOR
  • Connection Type Per Function: FEMALE INPUT AND MALE OUTPUT
  • Coaxial Connector Series Designation: N
  • Frequency Range: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
  • Criticality Code Justification: FEAT
Applications
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-865-0108, 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 Keysight Technologies Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5985-00-865-0108
Primary Part Number8491A-010
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING BODY
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Terminal Type and Quantity2 CONNECTOR
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Coaxial Connector Series DesignationN
Frequency Range0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
Criticality Code JustificationFEAT
Power Rating2.0 WATTS AVERAGE AND 100.0 WATTS PEAK
Rf Signal Attenuation in Decibels10.0
Mounting MethodTERMINAL
Output Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio Frequency Range+0.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ
Overall Diameter0.810 INCHES NOMINAL IN
Input Impedance Rating in Ohms50.0
Voltage Standing Wave Ratio1.20 AND 1.30
Attenuation Accuracy in Decibels-0.60 TO 0.60
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5985-00-004-9345 INTERCHANGEABLE
Attenuator,fixed
6210-00-065-5260161310 INTERCHANGEABLE
Light,panel
General Electric Company
5935-01-302-2049M85049/10-47W INTERCHANGEABLE
Backshell,electrical Connector
Sae International Dba Sae International
5330-01-479-3336 INTERCHANGEABLE
Seal,plain
Cross-Reference Index
Part NumberManufacturer
8491A-010 Keysight Technologies France S.a.s. (FRA)
8491A-010 Keysight Technologies, Inc. (USA)
8491A10DB Keysight Technologies, Inc. (USA)
1613-10 Peraton Inc (USA)
CN6337 Ministerie Van Defensie Commitmatlog/wpsn/gws/cbrn (NLD)
8491A10DB Hewlett-Packard Company Dba HP (USA)
530A10 Spectrum Control Inc Div Weinschel (USA)
8491A-010 Keysight Technologies France SAS (FRA)
2605742 Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA)
ST4130226HE0003 Rockwell International Corp North American Aircraft Opns (USA)
ST430226HE0003 Rockwell International Corp North American Aircraft Opns (USA)
8491A-0PT010 Hewlett-Packard Company Dba HP (USA)
8491A-010 PRIMARY Keysight Technologies Inc (USA)
723850-52 Raytheon Company Div Rmd Strategic (USA)
1613-10 Telephonics Corp/prd Instruments (USA)
2128482-1 PRIMARY Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA)
8491A/010 Technical Communities, Inc. Dba Technical Communities Inc Div Testmart (USA)
8491A-0PT010 Keysight Technologies, Inc. (USA)
8491A10DB PRIMARY Keysight Technologies Inc (USA)
8491A-0PT010 Keysight Technologies Inc (USA)
Related Parts
5985-00-004-9345INTERCHANGEABLE
ATTENUATOR,FIXED
6210-00-065-5260INTERCHANGEABLE
LIGHT,PANEL
161310
5935-01-302-2049INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
M85049/10-47W
5330-01-479-3336INTERCHANGEABLE
SEAL,PLAIN

Frequently Asked Questions

What is NSN 5985-00-865-0108?

NSN 5985-00-865-0108 is a Attenuator,fixed, manufactured by Keysight Technologies Inc, classified under FSC 5985 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5985-00-865-0108?

NSN 5985-00-865-0108 has 24 cross-referenced part numbers: 8491A-010 (Keysight Technologies France S.a.s.), 8491A-010 (Keysight Technologies, Inc.), 8491A10DB (Keysight Technologies, Inc.), 1613-10 (Peraton Inc), CN6337 (Ministerie Van Defensie Commitmatlog/wpsn/gws/cbrn) and 19 more.

What NSN replaces 5985-00-865-0108?

There are 4 known substitutes for 5985-00-865-0108: 5985-00-004-9345, 6210-00-065-5260, 5935-01-302-2049 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8491A-010?

Key specifications for 8491A-010: Material: STEEL CORROSION RESISTING BODY; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Terminal Type and Quantity: 2 CONNECTOR; End Item Identification: LANDING CRAFT AIR CUSHION (LCAC); FORRESTAL CLASS CV; TICONDEROGA CLASS CG (47); SPRUANCE CLASS DD (963); AUTOMATED REMOTE TRACKING STATION (ARTS); VIRGINIA CLASS CGN (41); AUSTIN SHIP CLASS LPD-4 AMPHIBIOUS TRANSPORT DOCKS; NIMITZ CLASS CVN; KIDD CLASS DDG; LOS ANGELES CLASS SSN (688). 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5985-00-865-0108 still in active supply?

NSN 5985-00-865-0108 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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