PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

539266-2Delay Line

Raytheon Company Dba Raytheon · NSN 5999-01-044-7865 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-044-7865 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-044-7865. Primary manufacturer part number: 539266-2.
Features
  • Delay Line — FSC 5999
  • Longest Vertical Distance Between Mounting Centers: 0.300 INCHES NOMINAL IN
  • Input Impedance Rating: 50.000 OHMS
  • Attenuation in Decibels: 3.000
  • Output Impedance Rating: 50.000 OHMS
  • Body Length: 0.780 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4
  • Individual Section Quantity: 1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-01-044-7865, 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 Raytheon Company Dba Raytheon. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-044-7865
Primary Part Number539266-2
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Longest Vertical Distance Between Mounting Centers0.300 INCHES NOMINAL IN
Input Impedance Rating50.000 OHMS
Attenuation in Decibels3.000
Output Impedance Rating50.000 OHMS
Body Length0.780 INCHES NOMINAL IN
Mounting Facility Quantity4
Individual Section Quantity1
Delay Time Variation MethodTAPPED
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Body Width0.460 INCHES NOMINAL IN
Frequency Bandwidth140.0 KILOHERTZ NOMINAL
Mounting FacilityPLUG-IN
Longest Horizontal Distance Between Mounting Centers0.200 INCHES NOMINAL IN
Body Depth0.362 INCHES NOMINAL IN
Terminal Type and Quantity4 PIN
Signal Delay MethodLUMPED CONSTANT
Section Delay Time2.500 NANOSECONDS NOMINAL SINGLE SECTION NS
Body StyleRECTANGULAR
Longest Vertical Distance Between Mounting Centers0.300 INCHES NOMINAL IN
Input Impedance Rating50.000 OHMS
Attenuation in Decibels3.000
Output Impedance Rating50.000 OHMS
Body Length0.780 INCHES NOMINAL IN
Mounting Facility Quantity4
Individual Section Quantity1
Delay Time Variation MethodTAPPED
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Body Width0.460 INCHES NOMINAL IN
Frequency Bandwidth140.0 KILOHERTZ NOMINAL
Mounting FacilityPLUG-IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0200 lbs
Cube0.0048 cu ft
Verified Substitutes 3
2410-00-405-2449D8K INTERCHANGEABLE
Tractor,full Tracked,low Speed
Caterpillar Inc Div Caterpillar Defense
2410-00-837-2414 INTERCHANGEABLE
Tractor,full Tracked,low Speed
4250-01-395-9469ECO-21 INTERCHANGEABLE
Reclaimer,solvent
Nexgen Enviro Systems, Inc. Dba Nexgen Enviro Systems Inc
Cross-Reference Index
Part NumberManufacturer
AV70-2 Allen a K Co Inc (USA)
TD-2.5 Allen a K Co Inc (USA)
AV20 Allen a K Co Inc (USA)
AV70-2 Allen Avionics, Inc. (USA)
539266-2 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
2410-00-405-2449INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
D8K
2410-00-837-2414INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
4250-01-395-9469INTERCHANGEABLE
RECLAIMER,SOLVENT
ECO-21

Frequently Asked Questions

What is NSN 5999-01-044-7865?

NSN 5999-01-044-7865 is a Delay Line, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-044-7865?

NSN 5999-01-044-7865 has 5 cross-referenced part numbers: AV70-2 (Allen a K Co Inc), TD-2.5 (Allen a K Co Inc), AV20 (Allen a K Co Inc), AV70-2 (Allen Avionics, Inc.), 539266-2 (Raytheon Company Dba Raytheon).

What NSN replaces 5999-01-044-7865?

There are 3 known substitutes for 5999-01-044-7865: 2410-00-405-2449, 2410-00-837-2414, 4250-01-395-9469. Verify interchangeability with system specifications before substitution.

What are the specifications of 539266-2?

Key specifications for 539266-2: Longest Vertical Distance Between Mounting Centers: 0.300 INCHES NOMINAL IN; Input Impedance Rating: 50.000 OHMS; Attenuation in Decibels: 3.000; Output Impedance Rating: 50.000 OHMS. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com