PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204357Attenuator,variable

Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq · NSN 5985-01-073-3415 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-073-3415 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-073-3415. Primary manufacturer part number: 204357.
Features
  • Attenuator,variable — FSC 5985
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S)
  • Terminal Type and Quantity: 2 CONNECTOR, COAXIAL, FEMALE
  • Adjustment Device Type and Quantity: 1 KNOB W/DIAL
  • Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Attenuation Per Step in Decibels: 10.0
  • Mounting Facility Pattern: FOUR POSITION RECTANGULAR
  • Mounting Thread Quantity: 32 PER INCH
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-073-3415, 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 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-073-3415
Primary Part Number204357
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
StatusACTIVE
Mounting Facility Type and Quantity4 THREADED HOLE(S)
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Adjustment Device Type and Quantity1 KNOB W/DIAL
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Attenuation Per Step in Decibels10.0
Mounting Facility PatternFOUR POSITION RECTANGULAR
Mounting Thread Quantity32 PER INCH
Step Position Quantity9
Mounting Facility Nominal Screw Thread Diameter0.138 INCHES IN
Overall Attenuation Range in Decibels+0.0 TO 90.0
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL IN
Attenuation Variation MethodSTEPPED
Coaxial Connector Series DesignationNPM
Center to Center Distance Between Mounting Facilities Parallel to Length2.312 INCHES NOMINAL IN
Application DesignTRANSMISSION LINE
Body StyleCOAXIAL TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-740-9809305319 INTERCHANGEABLE
Plate,retaining,bearing
Garwood/feller Inc Garwood Winch Div
1040-00-938-896454A50A94 INTERCHANGEABLE
Scale,nozzle
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-00-983-3961 INTERCHANGEABLE
Relay,electromagnetic
6240-01-186-203223219 INTERCHANGEABLE
Lamp,incandescent
General Electric Co National Customer Service Center
3110-01-308-7311 INTERCHANGEABLE
Ball,bearing
4710-01-321-685823219 INTERCHANGEABLE
Tube Assembly,metal
W O S Inc Safety Div
6685-01-324-6440204357 INTERCHANGEABLE
Gage,differential,dial Indicatin
Admiral Filter Company Llc
7930-01-381-58037000052378 INTERCHANGEABLE
Multi-Surface Sanitizer and Clea
3m Company
5680-01-468-8648 INTERCHANGEABLE
Core Material,cellular,structura
5331-01-681-4932204357 INTERCHANGEABLE
O-Ring
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
204357 PRIMARY Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
232190 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
SC6904-2545-1 Drs Icas, Llc (USA)
23219 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
Related Parts
3110-00-740-9809INTERCHANGEABLE
PLATE,RETAINING,BEARING
305319
1040-00-938-8964INTERCHANGEABLE
SCALE,NOZZLE
54A50A94
5945-00-983-3961INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6240-01-186-2032INTERCHANGEABLE
LAMP,INCANDESCENT
23219
3110-01-308-7311INTERCHANGEABLE
BALL,BEARING
4710-01-321-6858INTERCHANGEABLE
TUBE ASSEMBLY,METAL
23219
6685-01-324-6440INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
204357
7930-01-381-5803INTERCHANGEABLE
MULTI-SURFACE SANITIZER AND CLEA
7000052378
5680-01-468-8648INTERCHANGEABLE
CORE MATERIAL,CELLULAR,STRUCTURA
5331-01-681-4932INTERCHANGEABLE
O-RING
204357

Frequently Asked Questions

What is NSN 5985-01-073-3415?

NSN 5985-01-073-3415 is a Attenuator,variable, manufactured by Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-073-3415?

NSN 5985-01-073-3415 has 4 cross-referenced part numbers: 204357 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 232190 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), SC6904-2545-1 (Drs Icas, Llc), 23219 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq).

What NSN replaces 5985-01-073-3415?

There are 10 known substitutes for 5985-01-073-3415: 3110-00-740-9809, 1040-00-938-8964, 5945-00-983-3961 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204357?

Key specifications for 204357: Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Terminal Type and Quantity: 2 CONNECTOR, COAXIAL, FEMALE; Adjustment Device Type and Quantity: 1 KNOB W/DIAL; Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 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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