PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILT11979Teletypewriter Set

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5815-00-519-5644 · FSC 5815 · No Item Name Available
Verified by PartsTable
NSN 5815-00-519-5644 — this item is cataloged by the U.S. Government under National Stock Number 5815-00-519-5644. Primary manufacturer part number: MILT11979.
Features
  • Teletypewriter Set — FSC 5815
  • Accessory Controlling Agency: JCENS; JCENS; JCENS
  • Joint Electronics Type Designation System Item Type Number: AN/FGC-25X
  • Accessory Identifying Number: TT-178/FG TYPE NO. AND FN-65/FG TYPE NO. AND TT-119/FG TYPE NO.
  • AC Voltage Rating: 115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
  • Character Quantity Per Line: 72
  • Nondefinitive Spec/std Data: AN/FGG-25 TYPE
  • Unit Interval Quantity: 5.00
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Teletypewriter Set, cataloged under National Stock Number 5815-00-519-5644, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5815-00-519-5644
Primary Part NumberMILT11979
Item NameTeletypewriter Set
FSC / FSG5815 / 58 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Accessory Controlling AgencyJCENS; JCENS; JCENS
Joint Electronics Type Designation System Item Type NumberAN/FGC-25X
Accessory Identifying NumberTT-178/FG TYPE NO. AND FN-65/FG TYPE NO. AND TT-119/FG TYPE NO.
AC Voltage Rating115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
Character Quantity Per Line72
Nondefinitive Spec/std DataAN/FGG-25 TYPE
Unit Interval Quantity5.00
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM FIRST OPERATING POWER RQMT
Accessory Component Quantity3
Motor TypeSERIES-GOVERNED
Keyboard LanguageENGLISH
Tape Feed TypeFRICTION
PhaseSINGLE FIRST OPERATING POWER RQMT
Installation DesignFIXED STATION
Keyboard TypeSTANDARD COMMUNICATIONS
Joint Electronics Type Designation System Item NameTELETYPEWRITER SET
Furnished ItemsREPERFORATOR TRANSMITTER; TABLE; TELETYPEWRITER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5815-00-503-2769 INTERCHANGEABLE
Teletypewriter
5815-00-503-3316 INTERCHANGEABLE
Teletypewriter Set
5815-00-539-7773 INTERCHANGEABLE
Teletypewriter
5815-00-543-1327 INTERCHANGEABLE
Teletypewriter
5815-00-682-2709 INTERCHANGEABLE
Teletypewriter
5815-00-688-8919 INTERCHANGEABLE
Teletypewriter Set
Cross-Reference Index
Part NumberManufacturer
MILT11979 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ANFGC25X Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN/FGC-25X Joint Electronics Type Designation System (USA)
Related Parts
5815-00-503-2769INTERCHANGEABLE
TELETYPEWRITER
5815-00-503-3316INTERCHANGEABLE
TELETYPEWRITER SET
5815-00-539-7773INTERCHANGEABLE
TELETYPEWRITER
5815-00-543-1327INTERCHANGEABLE
TELETYPEWRITER
5815-00-682-2709INTERCHANGEABLE
TELETYPEWRITER
5815-00-688-8919INTERCHANGEABLE
TELETYPEWRITER SET

Frequently Asked Questions

What is NSN 5815-00-519-5644?

NSN 5815-00-519-5644 is a Teletypewriter Set, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5815 (No Item Name Available). Status: active.

What are the part numbers for NSN 5815-00-519-5644?

NSN 5815-00-519-5644 has 3 cross-referenced part numbers: MILT11979 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ANFGC25X (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN/FGC-25X (Joint Electronics Type Designation System).

What NSN replaces 5815-00-519-5644?

There are 6 known substitutes for 5815-00-519-5644: 5815-00-503-2769, 5815-00-503-3316, 5815-00-539-7773 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILT11979?

Key specifications for MILT11979: Accessory Controlling Agency: JCENS; JCENS; JCENS; Joint Electronics Type Designation System Item Type Number: AN/FGC-25X; Accessory Identifying Number: TT-178/FG TYPE NO. AND FN-65/FG TYPE NO. AND TT-119/FG TYPE NO.; AC Voltage Rating: 115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT. 17 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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