PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2051-30Attenuator,fixed

Spectrum Control, Inc. · NSN 5985-01-190-6837 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-190-6837 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-190-6837. Primary manufacturer part number: 2051-30.
Features
  • Attenuator,fixed — FSC 5985
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Precious Material and Location: INNER CONDUCTOR SURFACES GOLD
  • Attenuation Accuracy in Decibels: -0.80 TO 0.80
  • Overall Diameter: 0.580 INCHES MAXIMUM IN
  • Surface Treatment: NICKEL BODY
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • Coaxial Connector Series Designation: BNC
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-190-6837, 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 Spectrum Control, Inc.. Government technical data includes 23 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-190-6837
Primary Part Number2051-30
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerSpectrum Control, Inc.
StatusACTIVE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Precious Material and LocationINNER CONDUCTOR SURFACES GOLD
Attenuation Accuracy in Decibels-0.80 TO 0.80
Overall Diameter0.580 INCHES MAXIMUM IN
Surface TreatmentNICKEL BODY
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Coaxial Connector Series DesignationBNC
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Precious MaterialGOLD
Terminal Type and Quantity2 CONNECTOR
Input Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Rf Signal Attenuation in Decibels30.0
MaterialCOPPER ALLOY BODY
Frequency Range0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
Unpackaged Unit Weight4.000 OUNCES OZ
Voltage Standing Wave Ratio1.25 AND 1.30 AND 1.35
Power Rating2.0 WATTS AVERAGE AND 500.0 WATTS PEAK
Output Impedance Rating in Ohms50.0
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Attenuation Accuracy Reference Frequency12.4 GIGAHERTZ
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 8.0 GIGAHERTZ AND +8.0 TO 12.4 GIGAHERTZ
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4940-00-193-2607287024 INTERCHANGEABLE
Spray Gun,paint
Graco Inc.
9905-00-639-5947205130 INTERCHANGEABLE
Plate,identification
Lockheed Martin Corp
5985-01-032-4193217-0036-010 INTERCHANGEABLE
Attenuator,fixed
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5905-01-116-1719 INTERCHANGEABLE
Resistor,fixed,film
6120-01-623-857020-5130 INTERCHANGEABLE
Power Supply
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
2051-30 Spectrum Control, Inc. (USA)
18B-30 Spectrum Control Inc Div Weinschel (USA)
MDC88345-30 Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA)
Related Parts
4940-00-193-2607INTERCHANGEABLE
SPRAY GUN,PAINT
287024
9905-00-639-5947INTERCHANGEABLE
PLATE,IDENTIFICATION
205130
5985-01-032-4193INTERCHANGEABLE
ATTENUATOR,FIXED
217-0036-010
5905-01-116-1719INTERCHANGEABLE
RESISTOR,FIXED,FILM
6120-01-623-8570INTERCHANGEABLE
POWER SUPPLY
20-5130

Frequently Asked Questions

What is NSN 5985-01-190-6837?

NSN 5985-01-190-6837 is a Attenuator,fixed, manufactured by Spectrum Control, Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-190-6837?

NSN 5985-01-190-6837 has 3 cross-referenced part numbers: 2051-30 (Spectrum Control, Inc.), 18B-30 (Spectrum Control Inc Div Weinschel), MDC88345-30 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc).

What NSN replaces 5985-01-190-6837?

There are 5 known substitutes for 5985-01-190-6837: 4940-00-193-2607, 9905-00-639-5947, 5985-01-032-4193 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2051-30?

Key specifications for 2051-30: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Precious Material and Location: INNER CONDUCTOR SURFACES GOLD; Attenuation Accuracy in Decibels: -0.80 TO 0.80; Overall Diameter: 0.580 INCHES MAXIMUM IN. 25 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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