PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7749398P18Delay Line

Lockheed Martin Corporation Div Rms · NSN 5999-00-016-2174 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-016-2174 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-016-2174. Primary manufacturer part number: 7749398P18.
Features
  • Delay Line — FSC 5999
  • Adjustment Device Quantity: 1
  • Hole Diameter: 0.187 INCHES NOMINAL IN
  • Mounting Provision Arrangement Style: FOUR POSITION RECTANGULAR
  • Signal Delay Method: INDUCTANCE
  • Mounting Facility: UNTHREADED HOLE(S)
  • Body Depth: 0.760 INCHES NOMINAL IN
  • 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 5999-00-016-2174, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-016-2174
Primary Part Number7749398P18
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Adjustment Device Quantity1
Hole Diameter0.187 INCHES NOMINAL IN
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Signal Delay MethodINDUCTANCE
Mounting FacilityUNTHREADED HOLE(S)
Body Depth0.760 INCHES NOMINAL IN
Individual Section Quantity1
Delay Time Variation MethodADJUSTABLE
Longest Vertical Distance Between Mounting Centers3.562 INCHES NOMINAL IN
Operating Temp Range-1.0 TO 52.0 CELSIUS DEGC
Pulse Rise Time Rating150.0 MILLISECONDS MS
Section Delay Time100.000 MICROSECONDS NOMINAL SINGLE SECTION US
Body Length6.125 INCHES NOMINAL IN
Mounting Facility Quantity4
Terminal Type and Quantity2 COAXIAL RECEPTACLE
Adjustment Device Drive TypeSLOTTED SCREW
Longest Horizontal Distance Between Mounting Centers5.760 INCHES NOMINAL IN
Body StyleRECTANGULAR
Body Width4.562 INCHES NOMINAL IN
Adjustment Device Quantity1
Hole Diameter0.187 INCHES NOMINAL IN
Mounting Provision Arrangement StyleFOUR POSITION RECTANGULAR
Signal Delay MethodINDUCTANCE
Mounting FacilityUNTHREADED HOLE(S)
Body Depth0.760 INCHES NOMINAL IN
Individual Section Quantity1
Delay Time Variation MethodADJUSTABLE
Longest Vertical Distance Between Mounting Centers3.562 INCHES NOMINAL IN
Operating Temp Range-1.0 TO 52.0 CELSIUS DEGC
Pulse Rise Time Rating150.0 MILLISECONDS MS
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5895-01-442-9972 (63153)
HAZMATNo
Verified Substitutes 7
5895-01-442-997263153 SUCCESSOR
Interface Unit,communication Equ
Avaya Federal Solutions, Inc
8345-00-409-9285 INTERCHANGEABLE
Flag,national
5133-00-507-6222 INTERCHANGEABLE
Drill,twist
5307-00-538-60771A63153 INTERCHANGEABLE
Stud,plain
Fwd Seagrave Holdings Lp
3230-01-183-069763153 INTERCHANGEABLE
Bit,router
Dml Industrial Products Sub of Vermont American Corp Forest City Tool Div
5895-01-531-1974 INTERCHANGEABLE
Processor,signal Data
5360-01-649-338563153 INTERCHANGEABLE
Spring,helical,compression
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
7749398P18 St Olektron Corp (USA)
7749398P18 PRIMARY Lockheed Martin Corporation Div Rms (USA)
7749398P18 Ferranti Electric Inc (USA)
605M-19 St Olektron Corp (USA)
04D51205-507 Micro Networks Corporation (USA)
63-153 Ferranti Electric Inc (USA)
Related Parts
SUCCESSOR 5895-01-442-9972 Interface Unit,communication Equ · 63153
8345-00-409-9285INTERCHANGEABLE
FLAG,NATIONAL
5133-00-507-6222INTERCHANGEABLE
DRILL,TWIST
5307-00-538-6077INTERCHANGEABLE
STUD,PLAIN
1A63153
3230-01-183-0697INTERCHANGEABLE
BIT,ROUTER
63153
5895-01-531-1974INTERCHANGEABLE
PROCESSOR,SIGNAL DATA
5360-01-649-3385INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
63153

Frequently Asked Questions

What is NSN 5999-00-016-2174?

NSN 5999-00-016-2174 is a Delay Line, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-016-2174?

NSN 5999-00-016-2174 has 6 cross-referenced part numbers: 7749398P18 (St Olektron Corp), 7749398P18 (Lockheed Martin Corporation Div Rms), 7749398P18 (Ferranti Electric Inc), 605M-19 (St Olektron Corp), 04D51205-507 (Micro Networks Corporation) and 1 more.

What NSN replaces 5999-00-016-2174?

There are 7 known substitutes for 5999-00-016-2174: 5895-01-442-9972, 8345-00-409-9285, 5133-00-507-6222 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7749398P18?

Key specifications for 7749398P18: Adjustment Device Quantity: 1; Hole Diameter: 0.187 INCHES NOMINAL IN; Mounting Provision Arrangement Style: FOUR POSITION RECTANGULAR; Signal Delay Method: INDUCTANCE. 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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