PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

720-00330Line Repeater

Digitech Industries Inc · NSN 5815-01-019-9851 · FSC 5815 · No Item Name Available
Verified by PartsTable
NSN 5815-01-019-9851 — this item is cataloged by the U.S. Government under National Stock Number 5815-01-019-9851. Primary manufacturer part number: 720-00330.
Features
  • Line Repeater — FSC 5815
  • General Characteristics Item Description: THE LINE REPEATER IS A SOLID-STATE REPEATER OF NEUTRAL TELEGRAPH SIGNALS OFFERING ELECTRICAL ISOLATION BETWEEN INPUT AND OUTPUT CIRCUITS.INPUT AND OUTPUT LEVELS MAY BE EITHER 20 MA. OR 60 MA. NEUTRAL. EQUIPMENT APPLICATION TELECOM SWITCHING UNIT,MODEL TSU10,DESIGNED AND MANUFACTURED BY DIGITECH,DATA INDUSTRIES,INC.,RIDGEFIELD,CONNECTICUT
  • 3 verified cross-references
  • Primary manufacturer: Digitech Industries Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Line Repeater, cataloged under National Stock Number 5815-01-019-9851, is classified within Federal Supply Class 5815 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Digitech Industries Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN5815-01-019-9851
Primary Part Number720-00330
Item NameLine Repeater
FSC / FSG5815 / 58 — No Item Name Available
ManufacturerDigitech Industries Inc
StatusACTIVE
General Characteristics Item DescriptionTHE LINE REPEATER IS A SOLID-STATE REPEATER OF NEUTRAL TELEGRAPH SIGNALS OFFERING ELECTRICAL ISOLATION BETWEEN INPUT AND OUTPUT CIRCUITS.INPUT AND OUTPUT LEVELS MAY BE EITHER 20 MA. OR 60 MA. NEUTRAL. EQUIPMENT APPLICATION TELECOM SWITCHING UNIT,MODEL TSU10,DESIGNED AND MANUFACTURED BY DIGITECH,DATA INDUSTRIES,INC.,RIDGEFIELD,CONNECTICUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6135-00-043-4312 INTERCHANGEABLE
Battery,nonrechargeable
4220-00-118-612267A318H2-1 INTERCHANGEABLE
Life Raft,inflatable
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
6135-01-031-0862C18.1M-910A INTERCHANGEABLE
Battery,nonrechargeable
American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
720-00330 Digitech Industries Inc (USA)
LR1 Digitech Industries Inc (USA)
D803-00318A Digitech Industries Inc (USA)
Related Parts
6135-00-043-4312INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
4220-00-118-6122INTERCHANGEABLE
LIFE RAFT,INFLATABLE
67A318H2-1
6135-01-031-0862INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
C18.1M-910A

Frequently Asked Questions

What is NSN 5815-01-019-9851?

NSN 5815-01-019-9851 is a Line Repeater, manufactured by Digitech Industries Inc, classified under FSC 5815 (No Item Name Available). Status: active.

What are the part numbers for NSN 5815-01-019-9851?

NSN 5815-01-019-9851 has 3 cross-referenced part numbers: 720-00330 (Digitech Industries Inc), LR1 (Digitech Industries Inc), D803-00318A (Digitech Industries Inc).

What NSN replaces 5815-01-019-9851?

There are 3 known substitutes for 5815-01-019-9851: 6135-00-043-4312, 4220-00-118-6122, 6135-01-031-0862. Verify interchangeability with system specifications before substitution.

What are the specifications of 720-00330?

Key specifications for 720-00330: General Characteristics Item Description: THE LINE REPEATER IS A SOLID-STATE REPEATER OF NEUTRAL TELEGRAPH SIGNALS OFFERING ELECTRICAL ISOLATION BETWEEN INPUT AND OUTPUT CIRCUITS.INPUT AND OUTPUT LEVELS MAY BE EITHER 20 MA. OR 60 MA. NEUTRAL. EQUIPMENT APPLICATION TELECOM SWITCHING UNIT,MODEL TSU10,DESIGNED AND MANUFACTURED BY DIGITECH,DATA INDUSTRIES,INC.,RIDGEFIELD,CONNECTICUT. 1 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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