PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

145266Attenuator,variable

Northrop Grumman Systems Corporation · NSN 5985-00-333-5948 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-333-5948 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-333-5948. Primary manufacturer part number: 145266.
Features
  • Attenuator,variable — FSC 5985
  • Attenuation Per Step in Decibels: 10.0
  • Mounting Facility Nominal Screw Thread Diameter: 0.164 INCHES IN
  • Mounting Facility Pattern: TWO POSITION IN-LINE
  • Operating Temp Range: +0.0 TO 65.0 CELSIUS DEGC
  • Body Style: COAXIAL TYPE
  • Adjustment Device Type and Quantity: 1 SHAFT
  • Impedance Rating in Ohms: 50.0 INPUT-OUTPUT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-333-5948, 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 25 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-333-5948
Primary Part Number145266
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Attenuation Per Step in Decibels10.0
Mounting Facility Nominal Screw Thread Diameter0.164 INCHES IN
Mounting Facility PatternTWO POSITION IN-LINE
Operating Temp Range+0.0 TO 65.0 CELSIUS DEGC
Body StyleCOAXIAL TYPE
Adjustment Device Type and Quantity1 SHAFT
Impedance Rating in Ohms50.0 INPUT-OUTPUT
Attenuation Variation MethodSTEPPED
Mounting Thread Quantity32 PER INCH
Distance Between Mounting Facility Centers1.125 INCHES NOMINAL IN
Step Position Quantity7
Power Rating500.0 MILLIWATTS PEAK
Application DesignTRANSMISSION LINE
Shaft Diameter0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Shaft Length0.938 INCHES NOMINAL IN
Overall Attenuation Range in Decibels+0.0 TO 60.0
Terminal Type and Quantity2 CONNECTOR, COAXIAL, FEMALE
Frequency Range400.000 MEGAHERTZ MINIMUM AND 450.000 MEGAHERTZ MAXIMUM
Voltage Standing Wave Ratio1.70
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Overall Attenuation Accuracy in Decibels-0.50 TO 0.50
Mounting Facility Type and Quantity2 THREADED HOLE(S)
Insertion Loss at Minimum Attenuation in Maximum Decibels0.3
Shaft TypeROUND
Coaxial Connector Series DesignationN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-146-04090415000046 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5935-00-260-0516 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5920-00-450-1978145266 INTERCHANGEABLE
Fuse,plug
Telemechanics Inc
4320-01-198-1127 INTERCHANGEABLE
Pump,centrifugal
5325-01-286-7252A2136 INTERCHANGEABLE
Eyelet,metallic
Edwin B. Stimpson Company, Inc. Dba Stimpson
Cross-Reference Index
Part NumberManufacturer
145266 PRIMARY Northrop Grumman Systems Corporation (USA)
A2136 Rlc Electronics, Inc (USA)
50A60-128 Alan Industries Inc (USA)
STA-1110-00-001-03 Cinch Connectivity Solutions Inc (USA)
Related Parts
4820-00-146-0409INTERCHANGEABLE
DISK,VALVE
0415000046
5935-00-260-0516INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5920-00-450-1978INTERCHANGEABLE
FUSE,PLUG
145266
4320-01-198-1127INTERCHANGEABLE
PUMP,CENTRIFUGAL
5325-01-286-7252INTERCHANGEABLE
EYELET,METALLIC
A2136

Frequently Asked Questions

What is NSN 5985-00-333-5948?

NSN 5985-00-333-5948 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 5985-00-333-5948?

NSN 5985-00-333-5948 has 4 cross-referenced part numbers: 145266 (Northrop Grumman Systems Corporation), A2136 (Rlc Electronics, Inc), 50A60-128 (Alan Industries Inc), STA-1110-00-001-03 (Cinch Connectivity Solutions Inc).

What NSN replaces 5985-00-333-5948?

There are 5 known substitutes for 5985-00-333-5948: 4820-00-146-0409, 5935-00-260-0516, 5920-00-450-1978 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 145266?

Key specifications for 145266: Attenuation Per Step in Decibels: 10.0; Mounting Facility Nominal Screw Thread Diameter: 0.164 INCHES IN; Mounting Facility Pattern: TWO POSITION IN-LINE; Operating Temp Range: +0.0 TO 65.0 CELSIUS DEGC. 28 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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