PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MDC2017BB-40Attenuator,variable

Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc · NSN 5985-00-729-4074 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-729-4074 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-729-4074. Primary manufacturer part number: MDC2017BB-40.
Features
  • Attenuator,variable — FSC 5985
  • Overall Attenuation Accuracy in Decibels: -0.30 TO 0.30
  • Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.2
  • Attenuation Variation Method: STEPPED
  • Attenuation Per Step in Decibels: 1.0
  • Mounting Facility Type and Quantity: 2 CONNECTOR
  • Adjustment Device Type and Quantity: 1 KNOB
  • Body Style: COAXIAL TYPE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-729-4074, 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 Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-729-4074
Primary Part NumberMDC2017BB-40
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerDal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc
StatusACTIVE
Overall Attenuation Accuracy in Decibels-0.30 TO 0.30
Insertion Loss at Minimum Attenuation in Maximum Decibels0.2
Attenuation Variation MethodSTEPPED
Attenuation Per Step in Decibels1.0
Mounting Facility Type and Quantity2 CONNECTOR
Adjustment Device Type and Quantity1 KNOB
Body StyleCOAXIAL TYPE
Coaxial Connector Series DesignationTNC
Step Position Quantity10
Overall Attenuation Range in Decibels+0.0 TO 10.0
Power Rating1.0 WATTS AVERAGE
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Application DesignTRANSMISSION LINE
Frequency Range0.000 GIGAHERTZ MINIMUM AND 1.300 GIGAHERTZ MAXIMUM
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Voltage Standing Wave Ratio1.30
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6695-00-005-1278 INTERCHANGEABLE
Transducer,motional Pickup
5895-00-441-1870471 INTERCHANGEABLE
Amplifier-Filter Assembly,electr
Advanced Measurement Technology Inc
6625-00-449-9167 INTERCHANGEABLE
Wattmeter
6625-00-502-7348500A INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
6625-00-765-0469100A INTERCHANGEABLE
Detector,radio Frequency
Industrial Test Equipment Company, Inc. Dba Industrial Test Equipment Co
4940-00-870-1231500A INTERCHANGEABLE
Degreaser
Graymills Corporation
4940-01-028-7493EP-5UL INTERCHANGEABLE
Heat Gun,electric
Electrical Assembly Inc. Div Eddy Products
5895-01-031-3879 INTERCHANGEABLE
Generator,pulse
6625-01-033-6593435A INTERCHANGEABLE
Meter,power Factor
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
4510-01-192-9802 INTERCHANGEABLE
Faucet,double
Cross-Reference Index
Part NumberManufacturer
MDC2017BB-40 PRIMARY Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA)
500A Kay Elemetrics Corporation (USA)
435A Kay Elemetrics Corporation (USA)
60-0 Kay Elemetrics Corporation (USA)
Related Parts
6695-00-005-1278INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
5895-00-441-1870INTERCHANGEABLE
AMPLIFIER-FILTER ASSEMBLY,ELECTR
471
6625-00-449-9167INTERCHANGEABLE
WATTMETER
6625-00-502-7348INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
500A
6625-00-765-0469INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
100A
4940-00-870-1231INTERCHANGEABLE
DEGREASER
500A
4940-01-028-7493INTERCHANGEABLE
HEAT GUN,ELECTRIC
EP-5UL
5895-01-031-3879INTERCHANGEABLE
GENERATOR,PULSE
6625-01-033-6593INTERCHANGEABLE
METER,POWER FACTOR
435A
4510-01-192-9802INTERCHANGEABLE
FAUCET,DOUBLE
6625-01-214-4515INTERCHANGEABLE
ANALYZER,SPECTRUM
500A
4520-01-426-3292INTERCHANGEABLE
CONTROL BOX
500-A

Frequently Asked Questions

What is NSN 5985-00-729-4074?

NSN 5985-00-729-4074 is a Attenuator,variable, manufactured by Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-729-4074?

NSN 5985-00-729-4074 has 4 cross-referenced part numbers: MDC2017BB-40 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc), 500A (Kay Elemetrics Corporation), 435A (Kay Elemetrics Corporation), 60-0 (Kay Elemetrics Corporation).

What NSN replaces 5985-00-729-4074?

There are 12 known substitutes for 5985-00-729-4074: 6695-00-005-1278, 5895-00-441-1870, 6625-00-449-9167 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MDC2017BB-40?

Key specifications for MDC2017BB-40: Overall Attenuation Accuracy in Decibels: -0.30 TO 0.30; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.2; Attenuation Variation Method: STEPPED; Attenuation Per Step in Decibels: 1.0. 19 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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