PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-2587Attenuator,variable

Rlc Electronics, Inc · NSN 5985-01-159-0718 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-159-0718 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-159-0718. Primary manufacturer part number: A-2587.
Features
  • Attenuator,variable — FSC 5985
  • Impedance Rating in Ohms: 50.0 INPUT-OUTPUT
  • Frequency Range: 63.000 MEGAHERTZ MINIMUM AND 77.000 MEGAHERTZ MAXIMUM
  • Power Rating: 2.0 WATTS AVERAGE AND 200.0 KILOWATTS PEAK
  • Coaxial Connector Series Designation: SMA
  • Overall Attenuation Range in Decibels: +0.0 TO 49.0
  • Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.4
  • Application Design: TRANSMISSION LINE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-159-0718, 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 Rlc Electronics, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-159-0718
Primary Part NumberA-2587
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerRlc Electronics, Inc
StatusACTIVE
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Frequency Range63.000 MEGAHERTZ MINIMUM AND 77.000 MEGAHERTZ MAXIMUM
Power Rating2.0 WATTS AVERAGE AND 200.0 KILOWATTS PEAK
Coaxial Connector Series DesignationSMA
Overall Attenuation Range in Decibels+0.0 TO 49.0
Insertion Loss at Minimum Attenuation in Maximum Decibels0.4
Application DesignTRANSMISSION LINE
Step Position Quantity49
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Attenuation Per Step in Decibels1.0
Adjustment Device Type and Quantity2 KNOB W/DIAL
Attenuation Accuracy Reference Frequency77.0 MEGAHERTZ
Attenuation Variation MethodSTEPPED
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Voltage Standing Wave Ratio1.25
Overall Attenuation Accuracy in Decibels-0.20 TO 0.20
Body StyleCOAXIAL TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2920-00-330-9155A2587 INTERCHANGEABLE
Drive,engine,electrical Starter
Purolator Products Co Div Motor Components, Llc
2520-00-628-94789561 INTERCHANGEABLE
Hub and Back Plate
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5360-00-714-722910558767 INTERCHANGEABLE
Spring,tape
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
2920-00-845-27452862700 INTERCHANGEABLE
Tumbler,ignition Sw
Chrysler Realty Company Llc Dba Daimler Chrysler
5930-01-327-3673956-1A INTERCHANGEABLE
Switch Assembly
Insinger Machine Co
6510-01-388-789197-9561 INTERCHANGEABLE
Pad,abdominal
Acute Biomedical Supplies Inc
Cross-Reference Index
Part NumberManufacturer
A-2587 PRIMARY Rlc Electronics, Inc (USA)
979806 Raytheon Company Div Corp (USA)
9561 PRIMARY Spectrum Control Inc Div Weinschel (USA)
Related Parts
2920-00-330-9155INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
A2587
2520-00-628-9478INTERCHANGEABLE
HUB AND BACK PLATE
9561
5360-00-714-7229INTERCHANGEABLE
SPRING,TAPE
10558767
2920-00-845-2745INTERCHANGEABLE
TUMBLER,IGNITION SW
2862700
5930-01-327-3673INTERCHANGEABLE
SWITCH ASSEMBLY
956-1A
6510-01-388-7891INTERCHANGEABLE
PAD,ABDOMINAL
97-9561

Frequently Asked Questions

What is NSN 5985-01-159-0718?

NSN 5985-01-159-0718 is a Attenuator,variable, manufactured by Rlc Electronics, Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-159-0718?

NSN 5985-01-159-0718 has 3 cross-referenced part numbers: A-2587 (Rlc Electronics, Inc), 979806 (Raytheon Company Div Corp), 9561 (Spectrum Control Inc Div Weinschel).

What NSN replaces 5985-01-159-0718?

There are 6 known substitutes for 5985-01-159-0718: 2920-00-330-9155, 2520-00-628-9478, 5360-00-714-7229 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-2587?

Key specifications for A-2587: Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Overall Width: 3.210 INCHES MINIMUM AND 3.290 INCHES MAXIMUM IN; Frequency Range: 63.000 MEGAHERTZ MINIMUM AND 77.000 MEGAHERTZ MAXIMUM; Power Rating: 2.0 WATTS AVERAGE AND 200.0 KILOWATTS PEAK. 20 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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