PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

145643-002Attenuator,fixed

L3harris Technologies, Inc. · NSN 5985-00-917-6599 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-917-6599 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-917-6599. Primary manufacturer part number: 145643-002.
Features
  • Attenuator,fixed — FSC 5985
  • Attenuation Accuracy Reference Frequency: 3.0 GIGAHERTZ
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • Attenuation Accuracy in Decibels: -0.30 TO 0.30
  • Overall Diameter: 0.820 INCHES NOMINAL IN
  • Unpackaged Unit Weight: 2.400 OUNCES OZ
  • Mounting Method: CONNECTOR
  • 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 5985-00-917-6599, 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 L3harris Technologies, Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5985-00-917-6599
Primary Part Number145643-002
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc.
StatusACTIVE
Attenuation Accuracy Reference Frequency3.0 GIGAHERTZ
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Attenuation Accuracy in Decibels-0.30 TO 0.30
Overall Diameter0.820 INCHES NOMINAL IN
Unpackaged Unit Weight2.400 OUNCES OZ
Mounting MethodCONNECTOR
Output Impedance Rating in Ohms50.0
Coaxial Connector Series DesignationN
Rf Signal Attenuation in Decibels10.0
Input Impedance Rating in Ohms50.0
Frequency Range0.000 HERTZ MINIMUM AND 3.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio Frequency Range+0.0 TO 3.0 GIGAHERTZ
Voltage Standing Wave Ratio1.20
Terminal Type and Quantity2 CONNECTOR
Power Rating2.0 WATTS AVERAGE AND 300.0 WATTS PEAK
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1285-00-051-65201440888 INTERCHANGEABLE
Gearing Assembly,co
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-157-0200 INTERCHANGEABLE
Bearing,ball,annular
6620-00-181-4268771-10 INTERCHANGEABLE
Handstaff
Elbitamerica, Inc.
5975-00-593-461514800-2A INTERCHANGEABLE
Mounting Base,electrical Equipme
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
6145-01-039-2568771-10 INTERCHANGEABLE
Cable,special Purpose,electrical
Thomas and Betts Corp Electronics Group
7510-01-124-318677110 INTERCHANGEABLE
Typing Element
Royal Consumer Information Products, Inc. Div Supplies Division
6150-01-249-4086 INTERCHANGEABLE
Lead,storage Battery
5305-01-618-292477110 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
5935-01-661-31811-968874-1 INTERCHANGEABLE
Connector Body,plug,electrical
Te Connectivity Public Limited Company
Cross-Reference Index
Part NumberManufacturer
422-7307 Nimikkeistokeskus Ncb Finland (FIN)
771-10 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
145643-002 PRIMARY L3harris Technologies, Inc. (USA)
Related Parts
1285-00-051-6520INTERCHANGEABLE
GEARING ASSEMBLY,CO
1440888
3110-00-157-0200INTERCHANGEABLE
BEARING,BALL,ANNULAR
6620-00-181-4268INTERCHANGEABLE
HANDSTAFF
771-10
5975-00-593-4615INTERCHANGEABLE
MOUNTING BASE,ELECTRICAL EQUIPME
14800-2A
6145-01-039-2568INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
771-10
7510-01-124-3186INTERCHANGEABLE
TYPING ELEMENT
77110
6150-01-249-4086INTERCHANGEABLE
LEAD,STORAGE BATTERY
5305-01-618-2924INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
77110
5935-01-661-3181INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
1-968874-1

Frequently Asked Questions

What is NSN 5985-00-917-6599?

NSN 5985-00-917-6599 is a Attenuator,fixed, manufactured by L3harris Technologies, Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-917-6599?

NSN 5985-00-917-6599 has 3 cross-referenced part numbers: 422-7307 (Nimikkeistokeskus Ncb Finland), 771-10 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 145643-002 (L3harris Technologies, Inc.).

What NSN replaces 5985-00-917-6599?

There are 9 known substitutes for 5985-00-917-6599: 1285-00-051-6520, 3110-00-157-0200, 6620-00-181-4268 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 145643-002?

Key specifications for 145643-002: Attenuation Accuracy Reference Frequency: 3.0 GIGAHERTZ; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Attenuation Accuracy in Decibels: -0.30 TO 0.30; Overall Diameter: 0.820 INCHES NOMINAL IN. 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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