PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90290Attenuator,variable

Waveline Inc · NSN 5985-00-055-8039 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-055-8039 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-055-8039. Primary manufacturer part number: 90290.
Features
  • Attenuator,variable — FSC 5985
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.810 INCHES NOMINAL IN
  • Voltage Standing Wave Ratio: 1.20
  • Coaxial Connector Series Designation: BNC
  • Frequency Range: 100.000 MEGAHERTZ MAXIMUM
  • Step Position Quantity: 10
  • Distance Between Mounting Facility Centers: 2.440 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Height: 1.340 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-055-8039, 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 Waveline Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-055-8039
Primary Part Number90290
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerWaveline Inc
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width2.810 INCHES NOMINAL IN
Voltage Standing Wave Ratio1.20
Coaxial Connector Series DesignationBNC
Frequency Range100.000 MEGAHERTZ MAXIMUM
Step Position Quantity10
Distance Between Mounting Facility Centers2.440 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Height1.340 INCHES NOMINAL IN
Attenuation Variation MethodSTEPPED
Power Rating500.0 WATTS AVERAGE
Application DesignTRANSMISSION LINE
Insertion Loss at Minimum Attenuation in Maximum Decibels0.2
Overall Attenuation Range in Decibels+0.0 TO 132.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-011-2432102-4B10 INTERCHANGEABLE
Nut,plain,hexagon
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3120-00-288-60341225D368 INTERCHANGEABLE
Bearing,sleeve
Meritor Heavy Vehicle Systems, Llc
5999-01-287-7268 INTERCHANGEABLE
Contact,electrical
4920-01-297-973190290 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5945-01-437-8087 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
90290 PRIMARY Waveline Inc (USA)
579R895H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5310-00-011-2432INTERCHANGEABLE
NUT,PLAIN,HEXAGON
102-4B10
3120-00-288-6034INTERCHANGEABLE
BEARING,SLEEVE
1225D368
5999-01-287-7268INTERCHANGEABLE
CONTACT,ELECTRICAL
4920-01-297-9731INTERCHANGEABLE
TEST PROGRAM SET
90290
5945-01-437-8087INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5985-00-055-8039?

NSN 5985-00-055-8039 is a Attenuator,variable, manufactured by Waveline Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-055-8039?

NSN 5985-00-055-8039 has 2 cross-referenced part numbers: 90290 (Waveline Inc), 579R895H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5985-00-055-8039?

There are 5 known substitutes for 5985-00-055-8039: 5310-00-011-2432, 3120-00-288-6034, 5999-01-287-7268 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90290?

Key specifications for 90290: Center to Center Distance Between Mounting Facilities Parallel to Width: 2.810 INCHES NOMINAL IN; Voltage Standing Wave Ratio: 1.20; Coaxial Connector Series Designation: BNC; Frequency Range: 100.000 MEGAHERTZ MAXIMUM. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com