PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-91Delay Line

Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil · NSN 5999-00-416-3212 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-416-3212 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-416-3212. Primary manufacturer part number: 45-91.
Features
  • Delay Line — FSC 5999
  • Body Depth: 2.125 INCHES NOMINAL IN
  • Pulse Rise Time Rating: 500.0 MILLISECONDS MS
  • Voltage Rating: 500.000 VOLTS NOMINAL
  • Thread Size and Series/type Designator: 0.164-32 UNIFIED NATIONAL COARSE (UNC)
  • Attenuation in Decibels: 3.000
  • Longest Horizontal Distance Between Mounting Centers: 1.750 INCHES NOMINAL IN
  • Terminal Type and Quantity: 3 WIRE HOOK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-416-3212, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-416-3212
Primary Part Number45-91
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEsc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
StatusACTIVE
Body Depth2.125 INCHES NOMINAL IN
Pulse Rise Time Rating500.0 MILLISECONDS MS
Voltage Rating500.000 VOLTS NOMINAL
Thread Size and Series/type Designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
Attenuation in Decibels3.000
Longest Horizontal Distance Between Mounting Centers1.750 INCHES NOMINAL IN
Terminal Type and Quantity3 WIRE HOOK
Body Length4.531 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Output Impedance Rating75.000 OHMS
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Signal Delay MethodLUMPED CONSTANT
Stud Length0.469 INCHES NOMINAL IN
Unpackaged Unit Weight16.000 OUNCES OZ
Body Width2.250 INCHES NOMINAL IN
Thread Class2A A
Individual Section Quantity1
Mounting FacilityTHREADED STUD(S)
Section Delay Time13.000 MICROSECONDS NOMINAL SINGLE SECTION US
Mounting Facility Quantity4
Body StyleRECTANGULAR
Longest Vertical Distance Between Mounting Centers1.625 INCHES NOMINAL IN
Input Impedance Rating75.000 OHMS
Body Depth2.125 INCHES NOMINAL IN
Pulse Rise Time Rating500.0 MILLISECONDS MS
Voltage Rating500.000 VOLTS NOMINAL
Thread Size and Series/type Designator0.164-32 UNIFIED NATIONAL COARSE (UNC)
Attenuation in Decibels3.000
Longest Horizontal Distance Between Mounting Centers1.750 INCHES NOMINAL IN
Terminal Type and Quantity3 WIRE HOOK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6240-00-132-5365 INTERCHANGEABLE
Lamp,incandescent
5910-00-280-5434 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
2320-00-933-7521 INTERCHANGEABLE
Truck,cargo
Cross-Reference Index
Part NumberManufacturer
45-91 PRIMARY Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil (USA)
77C704771P1 Lockheed Martin Corporation Div Rms (USA)
Related Parts
6240-00-132-5365INTERCHANGEABLE
LAMP,INCANDESCENT
5910-00-280-5434INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
2320-00-933-7521INTERCHANGEABLE
TRUCK,CARGO

Frequently Asked Questions

What is NSN 5999-00-416-3212?

NSN 5999-00-416-3212 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 5999-00-416-3212?

NSN 5999-00-416-3212 has 2 cross-referenced part numbers: 45-91 (Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil), 77C704771P1 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5999-00-416-3212?

There are 3 known substitutes for 5999-00-416-3212: 6240-00-132-5365, 5910-00-280-5434, 2320-00-933-7521. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-91?

Key specifications for 45-91: Body Depth: 2.125 INCHES NOMINAL IN; Pulse Rise Time Rating: 500.0 MILLISECONDS MS; Voltage Rating: 500.000 VOLTS NOMINAL; Thread Size and Series/type Designator: 0.164-32 UNIFIED NATIONAL COARSE (UNC). 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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