PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55-38Delay Line

Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil · NSN 5999-00-325-8999 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-325-8999 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-325-8999. Primary manufacturer part number: 55-38.
Features
  • Delay Line — FSC 5999
  • Body Length: 8.240 INCHES NOMINAL IN
  • Body Width: 3.000 INCHES NOMINAL IN
  • Mounting Facility Quantity: 2
  • Individual Section Quantity: 1
  • Voltage Rating: 100.000 MILLIVOLTS MAXIMUM
  • Operating Temp Range: -55.0 TO 85.0 CELSIUS DEGC
  • Longest Horizontal Distance Between Mounting Centers: 9.160 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-325-8999, 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 Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-325-8999
Primary Part Number55-38
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEsc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
StatusACTIVE
Body Length8.240 INCHES NOMINAL IN
Body Width3.000 INCHES NOMINAL IN
Mounting Facility Quantity2
Individual Section Quantity1
Voltage Rating100.000 MILLIVOLTS MAXIMUM
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Longest Horizontal Distance Between Mounting Centers9.160 INCHES NOMINAL IN
Body Depth2.000 INCHES NOMINAL IN
Pulse Rise Time Rating2.0 MICROSECONDS US
Frequency Bandwidth200.0 KILOHERTZ MINIMUM
Input Impedance Rating25.000 OHMS
Mounting Provision Arrangement Style2 POSITION IN-LINE
Mounting FacilityBRACKET(S)
Signal Delay MethodINDUCTANCE
Section Delay Time61.750 MICROSECONDS MINIMUM SINGLE SECTION AND 68.250 MICROSECONDS MAXIMUM SINGLE SECTION US
Output Impedance Rating95.000 OHMS
Terminal Type and Quantity2 COAXIAL RECEPTACLE
Attenuation in Decibels2.000
Body StyleRECTANGULAR, TOP CONNECTION
Body Length8.240 INCHES NOMINAL IN
Body Width3.000 INCHES NOMINAL IN
Mounting Facility Quantity2
Individual Section Quantity1
Voltage Rating100.000 MILLIVOLTS MAXIMUM
Operating Temp Range-55.0 TO 85.0 CELSIUS DEGC
Longest Horizontal Distance Between Mounting Centers9.160 INCHES NOMINAL IN
Body Depth2.000 INCHES NOMINAL IN
Pulse Rise Time Rating2.0 MICROSECONDS US
Frequency Bandwidth200.0 KILOHERTZ MINIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 12
5905-00-174-8067K45258-500 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ward Leonard Ct Llc
5950-00-441-78763155896 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-637-0603 INTERCHANGEABLE
Setscrew
5905-00-677-0568156PS120 INTERCHANGEABLE
Resistor Set,matched
Honeywell International Inc Dba Honeywell International Div New England Instrument (nei)
5935-00-839-70257616239P1 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rms
3460-00-895-244055-38 INTERCHANGEABLE
Indexing Fixture
Safran Test Cells, Inc
6105-00-912-734508TGSM1242-1 INTERCHANGEABLE
Motor-Tachometer Generator
Ametek Technical & Industrial Products, Inc. Dba Tachtronic Instruments Division Div Ametek Technical and Industrial Products, Inc.
6685-00-978-332155-38 INTERCHANGEABLE
Thermocouple,heating Element
Teledyne Instruments, Inc. Dba Teledyne Hastings Instruments Div Teledyne Hastings Instruments
2640-00-999-78865538 INTERCHANGEABLE
Valve,pneumatic Tire
Schrader-Bridgeport International Inc Dba Schrader Automotive
6685-01-025-56715518 INTERCHANGEABLE
Thermostat,flow Control
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
55-38 Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil (USA)
7534267P0002 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
7534267P2 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
Related Parts
5905-00-174-8067INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
K45258-500
5950-00-441-7876INTERCHANGEABLE
TRANSFORMER,POWER
3155896
5305-00-637-0603INTERCHANGEABLE
SETSCREW
5905-00-677-0568INTERCHANGEABLE
RESISTOR SET,MATCHED
156PS120
5935-00-839-7025INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7616239P1
3460-00-895-2440INTERCHANGEABLE
INDEXING FIXTURE
55-38
6105-00-912-7345INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
08TGSM1242-1
6685-00-978-3321INTERCHANGEABLE
THERMOCOUPLE,HEATING ELEMENT
55-38
2640-00-999-7886INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
5538
6685-01-025-5671INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
5518
6550-01-146-4175INTERCHANGEABLE
CONTROL,GLUCOSE
5538
5895-01-169-1758INTERCHANGEABLE
SPEED CONTROL INDICATOR
553-8

Frequently Asked Questions

What is NSN 5999-00-325-8999?

NSN 5999-00-325-8999 is a Delay Line, manufactured by Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-325-8999?

NSN 5999-00-325-8999 has 3 cross-referenced part numbers: 55-38 (Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil), 7534267P0002 (Lockheed Martin Corp Naval Electronics & Surveillance Systems), 7534267P2 (Lockheed Martin Corp Naval Electronics & Surveillance Systems).

What NSN replaces 5999-00-325-8999?

There are 12 known substitutes for 5999-00-325-8999: 5905-00-174-8067, 5950-00-441-7876, 5305-00-637-0603 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55-38?

Key specifications for 55-38: Body Length: 8.240 INCHES NOMINAL IN; Body Width: 3.000 INCHES NOMINAL IN; Mounting Facility Quantity: 2; Individual Section Quantity: 1. 30 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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