PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138C106H11Attenuator,fixed

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5985-00-244-3211 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-244-3211 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-244-3211. Primary manufacturer part number: 138C106H11.
Features
  • Attenuator,fixed — FSC 5985
  • Output Impedance Rating in Ohms: 50.0
  • Mounting Method: CONNECTOR
  • Terminal Type and Quantity: 2 CONNECTOR
  • Attenuation Accuracy in Decibels: -0.50 TO 0.50
  • Voltage Standing Wave Ratio Frequency Range: +0.0 TO 3.0 GIGAHERTZ AND +3.0 TO 5.0 GIGAHERTZ
  • Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-244-3211, 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 Dba Northrop Grumman Systems Corp. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5985-00-244-3211
Primary Part Number138C106H11
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusCANCELLED
Output Impedance Rating in Ohms50.0
Mounting MethodCONNECTOR
Terminal Type and Quantity2 CONNECTOR
Attenuation Accuracy in Decibels-0.50 TO 0.50
Voltage Standing Wave Ratio Frequency Range+0.0 TO 3.0 GIGAHERTZ AND +3.0 TO 5.0 GIGAHERTZ
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Connection Type Per FunctionFEMALE INPUT AND MALE OUTPUT
Rf Signal Attenuation in Decibels3.0
Attenuation Accuracy Reference Frequency5.0 GIGAHERTZ
Frequency Range0.000 HERTZ MINIMUM AND 5.000 GIGAHERTZ MAXIMUM
Voltage Standing Wave Ratio1.20 AND 1.30
Overall Diameter1.640 INCHES NOMINAL IN
Coaxial Connector Series DesignationN
Unpackaged Unit Weight15.500 OUNCES OZ
Power Rating50.0 WATTS AVERAGE AND 2.0 KILOWATTS PEAK
Input Impedance Rating in Ohms50.0
Application DesignTRANSMISSION LINE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5915-00-126-4705 INTERCHANGEABLE
Filter,band Pass
4820-00-287-5617170C-N INTERCHANGEABLE
Cock,plug
Anderson Brass Co
2825-00-394-84257653 INTERCHANGEABLE
Retainer,spring Gov
Northrop Grumman Systems Corporation Div Marine Systems
5975-00-503-4634301853-1 INTERCHANGEABLE
Conduit,metal,flexible
L3harris Technologies, Inc. Dba Harris Corporation
5930-01-364-4109 INTERCHANGEABLE
Switch,toggle
5130-01-400-012341-94102-00 INTERCHANGEABLE
Adapter,socket Wrench
Power Hawk Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
138C106H11 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
138C106H11 PRIMARY Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
765-3 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
52100011-1 Borders Electronics Co Inc (USA)
Related Parts
5915-00-126-4705INTERCHANGEABLE
FILTER,BAND PASS
4820-00-287-5617INTERCHANGEABLE
COCK,PLUG
170C-N
2825-00-394-8425INTERCHANGEABLE
RETAINER,SPRING GOV
7653
5975-00-503-4634INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
301853-1
5930-01-364-4109INTERCHANGEABLE
SWITCH,TOGGLE
5130-01-400-0123INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
41-94102-00

Frequently Asked Questions

What is NSN 5985-00-244-3211?

NSN 5985-00-244-3211 is a Attenuator,fixed, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5985 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5985-00-244-3211?

NSN 5985-00-244-3211 has 4 cross-referenced part numbers: 138C106H11 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 138C106H11 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 765-3 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 52100011-1 (Borders Electronics Co Inc).

What NSN replaces 5985-00-244-3211?

There are 6 known substitutes for 5985-00-244-3211: 5915-00-126-4705, 4820-00-287-5617, 2825-00-394-8425 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138C106H11?

Key specifications for 138C106H11: Output Impedance Rating in Ohms: 50.0; Mounting Method: CONNECTOR; Terminal Type and Quantity: 2 CONNECTOR; Attenuation Accuracy in Decibels: -0.50 TO 0.50. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5985-00-244-3211 still in active supply?

NSN 5985-00-244-3211 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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