PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128C361H02Attenuator,variable

Northrop Grumman Support Services Corp · NSN 5985-00-824-7959 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-824-7959 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-824-7959. Primary manufacturer part number: 128C361H02.
Features
  • Attenuator,variable — FSC 5985
  • Unthreaded Mounting Hole Diameter: 0.120 INCHES NOMINAL IN
  • Mounting Facility Pattern: FOUR POSITION RECTANGULAR
  • Application Design: TRANSMISSION LINE
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.500 INCHES NOMINAL IN
  • Voltage Standing Wave Ratio: 1.50
  • Frequency Range: 2.900 GIGAHERTZ MINIMUM AND 3.100 GIGAHERTZ MAXIMUM
  • Center to Center Distance Between Mounting Facilities Parallel to Height: 2.500 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-824-7959, 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 Support Services Corp. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5985-00-824-7959
Primary Part Number128C361H02
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Support Services Corp
StatusACTIVE
Unthreaded Mounting Hole Diameter0.120 INCHES NOMINAL IN
Mounting Facility PatternFOUR POSITION RECTANGULAR
Application DesignTRANSMISSION LINE
Center to Center Distance Between Mounting Facilities Parallel to Width2.500 INCHES NOMINAL IN
Voltage Standing Wave Ratio1.50
Frequency Range2.900 GIGAHERTZ MINIMUM AND 3.100 GIGAHERTZ MAXIMUM
Center to Center Distance Between Mounting Facilities Parallel to Height2.500 INCHES NOMINAL IN
Body StyleCOAXIAL TYPE
Coaxial Connector Series DesignationN
Attenuation Variation MethodCONTINUOUS
Overall Attenuation Range in Decibels+0.0 TO 20.0
Overall Attenuation Accuracy in Decibels-0.50 TO 0.50
Adjustment Device Type and Quantity1 KNOB
Power Rating3.5 KILOWATTS AVERAGE
Test Data Document97942-128C361H02 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3020-00-628-916413238 INTERCHANGEABLE
Sprocket Wheel
Naval Inventory Control Point Mechanicsburg
5950-00-879-608013238 INTERCHANGEABLE
Transformer,radio Frequency
Vanguard Electronics, Llc
5330-00-890-5983 INTERCHANGEABLE
Gasket
6505-01-576-276722216 INTERCHANGEABLE
Lidocaine Hydrochloride and Epin
Dentsply Sirona Inc
Cross-Reference Index
Part NumberManufacturer
13238 Solitron Devices, Inc. (USA)
4604-20A Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA)
128C361H02 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
128C361H02 PRIMARY Northrop Grumman Support Services Corp (USA)
Related Parts
3020-00-628-9164INTERCHANGEABLE
SPROCKET WHEEL
13238
5950-00-879-6080INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
13238
5330-00-890-5983INTERCHANGEABLE
GASKET
6505-01-576-2767INTERCHANGEABLE
LIDOCAINE HYDROCHLORIDE AND EPIN
22216

Frequently Asked Questions

What is NSN 5985-00-824-7959?

NSN 5985-00-824-7959 is a Attenuator,variable, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-824-7959?

NSN 5985-00-824-7959 has 4 cross-referenced part numbers: 13238 (Solitron Devices, Inc.), 4604-20A (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc), 128C361H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 128C361H02 (Northrop Grumman Support Services Corp).

What NSN replaces 5985-00-824-7959?

There are 4 known substitutes for 5985-00-824-7959: 3020-00-628-9164, 5950-00-879-6080, 5330-00-890-5983 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 128C361H02?

Key specifications for 128C361H02: Unthreaded Mounting Hole Diameter: 0.120 INCHES NOMINAL IN; Overall Width: 3.000 INCHES NOMINAL IN; Mounting Facility Pattern: FOUR POSITION RECTANGULAR; Application Design: TRANSMISSION LINE. 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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