PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100891-001Delay Line

Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine · NSN 5999-01-346-0672 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-346-0672 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-346-0672. Primary manufacturer part number: 100891-001.
Features
  • Delay Line — FSC 5999
  • Inclosure Type: HERMETICALLY SEALED
  • Section Delay Time: 100.000 NANOSECONDS NOMINAL SINGLE SECTION NS
  • Delay Time Variation Method: TAPPED
  • Body Length: 0.780 INCHES MAXIMUM IN
  • Body Depth: 0.290 INCHES MAXIMUM IN
  • Material: NICKEL ALLOY 400 AND IRON ALLOY TERMINAL
  • Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE TERMINAL
Applications
  • Applications requiring Nickel Alloy 400 and Iron Alloy Terminal construction
General Description

The Delay Line, cataloged under National Stock Number 5999-01-346-0672, 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 Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine. Government technical data includes 29 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-346-0672
Primary Part Number100891-001
Item NameDelay Line
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEfratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine
StatusACTIVE
Inclosure TypeHERMETICALLY SEALED
Section Delay Time100.000 NANOSECONDS NOMINAL SINGLE SECTION NS
Delay Time Variation MethodTAPPED
Body Length0.780 INCHES MAXIMUM IN
Body Depth0.290 INCHES MAXIMUM IN
MaterialNICKEL ALLOY 400 AND IRON ALLOY TERMINAL
Material Document and ClassificationQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE TERMINAL
Surface TreatmentTIN TERMINAL
MaterialPLASTIC SILICONE AND GLASS FIBER BODY
Material Document and ClassificationMIL-M-14, TYPE MSG MIL SPEC SINGLE MATERIAL RESPONSE BODY
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Terminal Type and Quantity14 PIN
Segment Quantity Per Section10 SINGLE SECTION
Mounting FacilityTERMINAL
Mounting Facility Quantity14
Segment Delay Time8.000 NANOSECONDS MINIMUM SINGLE SECTION ALL SEGMENTS AND 12.000 NANOSECONDS MAXIMUM SINGLE SECTION ALL SEGMENTS NS
Body StyleRECTANGULAR
Individual Section Quantity1
Signal Delay MethodSOLID STATE
Pulse Rise Time Rating2.0 MICROSECONDS US
Voltage Rating4.750 VOLTS MINIMUM AND 5.250 VOLTS MAXIMUM
Body Width0.280 INCHES MAXIMUM IN
Inclosure TypeHERMETICALLY SEALED
Section Delay Time100.000 NANOSECONDS NOMINAL SINGLE SECTION NS
Delay Time Variation MethodTAPPED
Body Length0.780 INCHES MAXIMUM IN
Body Depth0.290 INCHES MAXIMUM IN
MaterialNICKEL ALLOY 400 AND IRON ALLOY TERMINAL
Material Document and ClassificationQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE TERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5895-01-735-0181 (100891001)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.0100 lbs
Cube0.0010 cu ft
Verified Substitutes 4
5895-01-735-0181100891001 SUCCESSOR
Interface Unit,communication Equ
General Dynamics Information Technology, Inc.
5920-01-734-8711100894001 INTERCHANGEABLE
Panel,fuse
General Dynamics Information Technology, Inc.
5935-01-734-9465100896001 INTERCHANGEABLE
Connector Assembly,electrical
General Dynamics Information Technology, Inc.
5340-01-735-0199100892001 INTERCHANGEABLE
Door,access,utility
General Dynamics Information Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
100891-001 Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine (USA)
DDU7F-100M Data Delay Devices (USA)
Related Parts
SUCCESSOR 5895-01-735-0181 Interface Unit,communication Equ · 100891001
5920-01-734-8711INTERCHANGEABLE
PANEL,FUSE
100894001
5935-01-734-9465INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
100896001
5340-01-735-0199INTERCHANGEABLE
DOOR,ACCESS,UTILITY
100892001

Frequently Asked Questions

What is NSN 5999-01-346-0672?

NSN 5999-01-346-0672 is a Delay Line, manufactured by Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-346-0672?

NSN 5999-01-346-0672 has 2 cross-referenced part numbers: 100891-001 (Efratom Time & Frequency Products, Inc Dba Datum - Irvine Div Datum - Irvine), DDU7F-100M (Data Delay Devices).

What NSN replaces 5999-01-346-0672?

There are 4 known substitutes for 5999-01-346-0672: 5895-01-735-0181, 5920-01-734-8711, 5935-01-734-9465 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100891-001?

Key specifications for 100891-001: Inclosure Type: HERMETICALLY SEALED; Section Delay Time: 100.000 NANOSECONDS NOMINAL SINGLE SECTION NS; Delay Time Variation Method: TAPPED; Body Length: 0.780 INCHES MAXIMUM IN. 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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