PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1128SCAV780-3Attenuator,variable

Northrop Grumman Systems Corporation · NSN 5985-00-100-7935 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-100-7935 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-100-7935. Primary manufacturer part number: 1128SCAV780-3.
Features
  • Attenuator,variable — FSC 5985
  • Unthreaded Mounting Hole Diameter: 0.218 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 50.0 INPUT-OUTPUT
  • Mounting Facility Type and Quantity: 7 UNTHREADED HOLE(S)
  • Adjustment Device Type and Quantity: 1 MOTOR
  • Frequency Range: 500.000 MEGAHERTZ MINIMUM AND 3.800 GIGAHERTZ MAXIMUM
  • Application Design: TRANSMISSION LINE
  • Step Position Quantity: 6
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-100-7935, 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 Northrop Grumman Systems Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-100-7935
Primary Part Number1128SCAV780-3
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Unthreaded Mounting Hole Diameter0.218 INCHES NOMINAL IN
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Mounting Facility Type and Quantity7 UNTHREADED HOLE(S)
Adjustment Device Type and Quantity1 MOTOR
Frequency Range500.000 MEGAHERTZ MINIMUM AND 3.800 GIGAHERTZ MAXIMUM
Application DesignTRANSMISSION LINE
Step Position Quantity6
Coaxial Connector Series DesignationN
Insertion Loss at Minimum Attenuation in Maximum Decibels0.3
Attenuation Variation MethodSTEPPED
Voltage Standing Wave Ratio1.20
Overall Attenuation Range in Decibels+0.0 TO 30.0
Operating Temp Range-54.0 TO 71.0 CELSIUS DEGC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5307-00-010-3197 INTERCHANGEABLE
Stud,plain
1650-00-065-8214 INTERCHANGEABLE
Valve Assembly,hydraulic,aircraf
2805-00-647-0702103-0641 INTERCHANGEABLE
Cover Assembly,gear
Cummins Power Generation Inc.
5307-01-089-6865103197 INTERCHANGEABLE
Stud,plain
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
CN1373ALQ99V Joint Electronics Type Designation System (USA)
103197 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
1128SCAV780-3 Northrop Grumman Systems Corporation (USA)
395111-2 L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA)
1128SCAV780-3 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5307-00-010-3197INTERCHANGEABLE
STUD,PLAIN
1650-00-065-8214INTERCHANGEABLE
VALVE ASSEMBLY,HYDRAULIC,AIRCRAF
2805-00-647-0702INTERCHANGEABLE
COVER ASSEMBLY,GEAR
103-0641
5307-01-089-6865INTERCHANGEABLE
STUD,PLAIN
103197

Frequently Asked Questions

What is NSN 5985-00-100-7935?

NSN 5985-00-100-7935 is a Attenuator,variable, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-100-7935?

NSN 5985-00-100-7935 has 5 cross-referenced part numbers: CN1373ALQ99V (Joint Electronics Type Designation System), 103197 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 1128SCAV780-3 (Northrop Grumman Systems Corporation), 395111-2 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), 1128SCAV780-3 (Northrop Grumman Systems Corporation).

What NSN replaces 5985-00-100-7935?

There are 4 known substitutes for 5985-00-100-7935: 5307-00-010-3197, 1650-00-065-8214, 2805-00-647-0702 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1128SCAV780-3?

Key specifications for 1128SCAV780-3: Unthreaded Mounting Hole Diameter: 0.218 INCHES NOMINAL IN; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 7 UNTHREADED HOLE(S); Adjustment Device Type and Quantity: 1 MOTOR. 13 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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