PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

83-303149Delay Line

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple · NSN 5999-00-447-0581 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-447-0581 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-447-0581. Primary manufacturer part number: 83-303149.
Features
  • Delay Line — FSC 5999
  • Mounting Facility Quantity: 2
  • Voltage Rating: 60.000 VOLTS NOMINAL
  • Body Length: 5.875 INCHES NOMINAL IN
  • Operating Temp Range: -55.0 TO 85.0 CELSIUS DEGC
  • Individual Section Quantity: 1
  • Surface Treatment: TIN TERMINAL
  • Attenuation in Decibels: 3.000
Applications
  • Applications requiring Plastic Epoxy Case construction
General Description

The Delay Line, cataloged under National Stock Number 5999-00-447-0581, is classified within Federal Supply Class 5999 (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 Div Multiple. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-447-0581
Primary Part Number83-303149
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
StatusCANCELLED
Mounting Facility Quantity2
Voltage Rating60.000 VOLTS NOMINAL
Body Length5.875 INCHES NOMINAL IN
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Individual Section Quantity1
Surface TreatmentTIN TERMINAL
Attenuation in Decibels3.000
MaterialPLASTIC EPOXY CASE
Pulse Rise Time Rating0.700 MICROSECONDS US
Output Impedance Rating10000.000 OHMS
Terminal Type and Quantity2 WIRE LEADS
Mounting FacilityTERMINAL
Signal Delay MethodLUMPED CONSTANT
Section Delay Time11.750 MICROSECONDS MINIMUM SINGLE SECTION AND 11.850 MICROSECONDS MAXIMUM SINGLE SECTION US
Body StyleCYLINDRICAL
Body Diameter0.469 INCHES NOMINAL IN
Input Impedance Rating10000.000 OHMS
Mounting Facility Quantity2
Voltage Rating60.000 VOLTS NOMINAL
Body Length5.875 INCHES NOMINAL IN
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Individual Section Quantity1
Surface TreatmentTIN TERMINAL
Attenuation in Decibels3.000
MaterialPLASTIC EPOXY CASE
Pulse Rise Time Rating0.700 MICROSECONDS US
Output Impedance Rating10000.000 OHMS
Terminal Type and Quantity2 WIRE LEADS
Mounting FacilityTERMINAL
Signal Delay MethodLUMPED CONSTANT
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5998-01-294-2529 (300001)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 12
No Item Name Available
5998-01-294-2529300001 SUCCESSOR
Circuit Card Assembly
Force Computers Inc.
5961-00-022-5664 INTERCHANGEABLE
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5985-00-106-0906 INTERCHANGEABLE
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4440-00-177-8840 INTERCHANGEABLE
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6130-00-350-8019 INTERCHANGEABLE
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5330-00-899-9662300001 INTERCHANGEABLE
Seal,nonmetallic Channel
A & S Tribal Industries
1730-01-121-0099 INTERCHANGEABLE
Spraying Unit,cleaning-Deicing-D
6695-01-271-734232356 INTERCHANGEABLE
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Aerosonic Llc
6515-01-521-797630-0001 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
83-303149 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
83-303149 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
30-0001 Radiation Instrument Development (USA)
Related Parts
SUCCESSOR 5998-01-294-2529 Circuit Card Assembly · 300001
6625-00-077-2336SUCCESSOR
NO ITEM NAME AVAILABLE
5961-00-022-5664INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5985-00-106-0906INTERCHANGEABLE
ANTENNA
4440-00-177-8840INTERCHANGEABLE
AIR DRYER ASSY
6130-00-350-8019INTERCHANGEABLE
POWER SUPPLY
5330-00-899-9662INTERCHANGEABLE
SEAL,NONMETALLIC CHANNEL
300001
1730-01-121-0099INTERCHANGEABLE
SPRAYING UNIT,CLEANING-DEICING-D
6695-01-271-7342INTERCHANGEABLE
BEZEL,INSTRUMENT MOUNTING
32356
6515-01-521-7976INTERCHANGEABLE
TOURNIQUET,NONPNEUMATIC
30-0001
3433-01-675-7762INTERCHANGEABLE
TORCH,WELDING
300001
2530-01-733-6203INTERCHANGEABLE
NUT,CAP,DUAL WHEEL MOUNTING
300001

Frequently Asked Questions

What is NSN 5999-00-447-0581?

NSN 5999-00-447-0581 is a Delay Line, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-447-0581?

NSN 5999-00-447-0581 has 3 cross-referenced part numbers: 83-303149 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division), 83-303149 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 30-0001 (Radiation Instrument Development).

What NSN replaces 5999-00-447-0581?

There are 12 known substitutes for 5999-00-447-0581: 6625-00-077-2336, 5998-01-294-2529, 5961-00-022-5664 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 83-303149?

Key specifications for 83-303149: Mounting Facility Quantity: 2; Voltage Rating: 60.000 VOLTS NOMINAL; Body Length: 5.875 INCHES NOMINAL IN; Operating Temp Range: -55.0 TO 85.0 CELSIUS DEGC. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-447-0581 still in active supply?

NSN 5999-00-447-0581 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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