PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D1680Delay Line

General Dynamics Motion Control Llc · NSN 5999-00-906-8541 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-906-8541 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-906-8541. Primary manufacturer part number: D1680.
Features
  • Delay Line — FSC 5999
  • Body Depth: 1.000 INCHES NOMINAL IN
  • Thread Size and Series/type Designator: 0.138-32 UNIFIED NATIONAL COARSE (UNC)
  • Terminal Type and Quantity: 4 WIRE HOOK
  • Body Style: RECTANGULAR
  • Mounting Provision Arrangement Style: 2 POSITION IN-LINE
  • Body Length: 2.500 INCHES NOMINAL IN
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Delay Line, cataloged under National Stock Number 5999-00-906-8541, 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 General Dynamics Motion Control Llc. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-906-8541
Primary Part NumberD1680
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerGeneral Dynamics Motion Control Llc
StatusACTIVE
Body Depth1.000 INCHES NOMINAL IN
Thread Size and Series/type Designator0.138-32 UNIFIED NATIONAL COARSE (UNC)
Terminal Type and Quantity4 WIRE HOOK
Body StyleRECTANGULAR
Mounting Provision Arrangement Style2 POSITION IN-LINE
Body Length2.500 INCHES NOMINAL IN
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Mounting Facility Quantity2
Stud Length0.312 INCHES NOMINAL IN
Attenuation in Decibels0.600
Longest Horizontal Distance Between Mounting Centers1.250 INCHES NOMINAL IN
Pulse Rise Time Rating0.1 MICROSECONDS US
Voltage Rating500.000 VOLTS NOMINAL
FSC Application DataMODULATOR ASSEMBLY,RADAR SET,AIRBORNE
Mounting FacilityTHREADED STUD(S)
Input Impedance Rating91.000 OHMS
Body Width1.500 INCHES NOMINAL IN
Body Depth1.000 INCHES NOMINAL IN
Thread Size and Series/type Designator0.138-32 UNIFIED NATIONAL COARSE (UNC)
Terminal Type and Quantity4 WIRE HOOK
Body StyleRECTANGULAR
Mounting Provision Arrangement Style2 POSITION IN-LINE
Body Length2.500 INCHES NOMINAL IN
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Mounting Facility Quantity2
Stud Length0.312 INCHES NOMINAL IN
Attenuation in Decibels0.600
Longest Horizontal Distance Between Mounting Centers1.250 INCHES NOMINAL IN
Pulse Rise Time Rating0.1 MICROSECONDS US
Voltage Rating500.000 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0300 lbs
Cube0.0318 cu ft
Verified Substitutes 1
3120-00-661-6764SAW-6616764 INTERCHANGEABLE
Bearing,sleeve
Southern Automotive Wholesalers, Inc
Cross-Reference Index
Part NumberManufacturer
157-012-0001 Northrop Grumman Systems Corporation (USA)
D1680 PRIMARY General Dynamics Motion Control Llc (USA)
DLJ323 Murata Erie North America Inc Headquarters and Georgia Opns (USA)
Related Parts
3120-00-661-6764INTERCHANGEABLE
BEARING,SLEEVE
SAW-6616764

Frequently Asked Questions

What is NSN 5999-00-906-8541?

NSN 5999-00-906-8541 is a Delay Line, manufactured by General Dynamics Motion Control Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-906-8541?

NSN 5999-00-906-8541 has 3 cross-referenced part numbers: 157-012-0001 (Northrop Grumman Systems Corporation), D1680 (General Dynamics Motion Control Llc), DLJ323 (Murata Erie North America Inc Headquarters and Georgia Opns).

What NSN replaces 5999-00-906-8541?

There is 1 known substitute for 5999-00-906-8541: 3120-00-661-6764. Verify interchangeability with system specifications before substitution.

What are the specifications of D1680?

Key specifications for D1680: Body Depth: 1.000 INCHES NOMINAL IN; Thread Size and Series/type Designator: 0.138-32 UNIFIED NATIONAL COARSE (UNC); Terminal Type and Quantity: 4 WIRE HOOK; Body Style: RECTANGULAR. 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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