PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4T-1Attenuator,fixed

Spectrum Control Inc Div Weinschel · NSN 5985-01-274-7910 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-274-7910 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-274-7910. Primary manufacturer part number: 4T-1.
Features
  • Attenuator,fixed — FSC 5985
  • Power Rating: 2.0 WATTS AVERAGE AND 100.0 WATTS PEAK
  • Attenuation Accuracy Reference Frequency: 12.4 GIGAHERTZ
  • Terminal Type and Quantity: 2 CONNECTOR
  • Output Impedance Rating in Ohms: 50.0
  • Frequency Range: 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
  • Overall Diameter: 0.310 INCHES NOMINAL IN
  • Input Impedance Rating in Ohms: 50.0
Applications
  • Applications requiring Steel Comp 302 and Steel Comp 303SE Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-274-7910, 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 Div Weinschel. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN5985-01-274-7910
Primary Part Number4T-1
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerSpectrum Control Inc Div Weinschel
StatusACTIVE
Power Rating2.0 WATTS AVERAGE AND 100.0 WATTS PEAK
Attenuation Accuracy Reference Frequency12.4 GIGAHERTZ
Terminal Type and Quantity2 CONNECTOR
Output Impedance Rating in Ohms50.0
Frequency Range0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM
Overall Diameter0.310 INCHES NOMINAL IN
Input Impedance Rating in Ohms50.0
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Voltage Standing Wave Ratio Frequency Range+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ AND +12.4 TO 18.0 GIGAHERTZ
Unpackaged Unit Weight0.140 OUNCES OZ
Coaxial Connector Series DesignationSMA
Rf Signal Attenuation in Decibels1.0
Attenuation Accuracy in Decibels-0.30 TO 0.30
Mounting MethodCONNECTOR
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Voltage Standing Wave Ratio1.15 AND 1.25 AND 1.35
Operating Temp Range-54.0 TO 125.0 CELSIUS DEGC
Precious Material and LocationCONTACTS GOLD
MaterialSTEEL COMP 302 AND STEEL COMP 303SE BODY
Precious MaterialGOLD
Surface TreatmentPASSIVATE BODY
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Specification/standard Data26916-037-003295 MANUFACTURERS SPECIFICATION CONTROL
Material Document and ClassificationQQ-S-763, CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE AND QQ-S-763, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE BODY
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-766-68737666873 INTERCHANGEABLE
Shaft,shouldered
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
4720-00-809-0594USM1008-0001 INTERCHANGEABLE
Hose,air Duct
Flexfab Llc
5120-00-892-240547821 INTERCHANGEABLE
Die,crimping Tool
Te Connectivity Corporation
5985-01-279-39774782-1 INTERCHANGEABLE
Attenuator,fixed
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
6665-01-572-517147821 INTERCHANGEABLE
Nbc Console
Canberra Industries Inc Dba Canberra Dover
Cross-Reference Index
Part NumberManufacturer
4T-1 PRIMARY Spectrum Control Inc Div Weinschel (USA)
4782-1 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
037-003295-004 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
MDC8065A-1 Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc (USA)
2082-4265-01 Cobham Advanced Electronic Solutions Inc. (USA)
Related Parts
3040-00-766-6873INTERCHANGEABLE
SHAFT,SHOULDERED
7666873
4720-00-809-0594INTERCHANGEABLE
HOSE,AIR DUCT
USM1008-0001
5120-00-892-2405INTERCHANGEABLE
DIE,CRIMPING TOOL
47821
5985-01-279-3977INTERCHANGEABLE
ATTENUATOR,FIXED
4782-1
6665-01-572-5171INTERCHANGEABLE
NBC CONSOLE
47821

Frequently Asked Questions

What is NSN 5985-01-274-7910?

NSN 5985-01-274-7910 is a Attenuator,fixed, manufactured by Spectrum Control Inc Div Weinschel, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-274-7910?

NSN 5985-01-274-7910 has 5 cross-referenced part numbers: 4T-1 (Spectrum Control Inc Div Weinschel), 4782-1 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 037-003295-004 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), MDC8065A-1 (Dal-Tech Devices, Inc. Dba Dal-Tech Devices Inc Div Dal-Tec Devices, Inc), 2082-4265-01 (Cobham Advanced Electronic Solutions Inc.).

What NSN replaces 5985-01-274-7910?

There are 5 known substitutes for 5985-01-274-7910: 3040-00-766-6873, 4720-00-809-0594, 5120-00-892-2405 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4T-1?

Key specifications for 4T-1: Power Rating: 2.0 WATTS AVERAGE AND 100.0 WATTS PEAK; Attenuation Accuracy Reference Frequency: 12.4 GIGAHERTZ; Terminal Type and Quantity: 2 CONNECTOR; Output Impedance Rating in Ohms: 50.0. 26 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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