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Technical Data Sheet
TT178FG ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TELETYPEWRITER is a the manufacturer industrial component. Key specifications include phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED, motor_type: SERIES-GOVERNED, keyboard_type: STANDARD COMMUNICATIONS, overall_width: 18.000 INCHES NOMINAL IN, overall_height: 11.000 INCHES NOMINAL IN, overall_length: 24.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5815-00-543-1327, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL TT178FG
NSN: 5815-00-543-1327
FSC: 5815
CAGE: 80058 — JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (USA)
SPECIFICATIONS
phaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
motor_typeSERIES-GOVERNED
keyboard_typeSTANDARD COMMUNICATIONS
overall_width18.000 INCHES NOMINAL IN
overall_height11.000 INCHES NOMINAL IN
overall_length24.000 INCHES NOMINAL IN
tape_feed_typeSPROCKET
frequency_rating50.0 HERTZ MINIMUM FIRST ALTERNATE OPERATING POWER RQMT
ac_voltage_rating115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED
keyboard_languageENGLISH
installation_designFIXED STATION
unit_interval_quantity5.000
NSN5815-00-543-1327
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TELETYPEWRITER TITLE COMPONENT PN TT178FG MFR TELETYPEWRITER
KEY FEATURES
NONDEFINITIVE SPEC/STD DATA: TT-178/FG TYPE
ELECTRICAL POWER SOURCE RELATIONSHIP: OPERATING
KEYBOARD TYPE: STANDARD COMMUNICATIONS
MOTOR TYPE: SERIES-GOVERNED
KEYBOARD LANGUAGE: ENGLISH
FREQUENCY RATING: 50.0 HERTZ MINIMUM FIRST ALTERNATE OPERATING POWER RQMT
UNIT INTERVAL QUANTITY: 5.000
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH18.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATATT-178/FG TYPE
ELECTRICAL POWER SOURCE RELATIONSHIPOPERATING
KEYBOARD TYPESTANDARD COMMUNICATIONS
MOTOR TYPESERIES-GOVERNED
KEYBOARD LANGUAGEENGLISH
FREQUENCY RATING50.0 HERTZ MINIMUM FIRST ALTERNATE OPERATING POWER RQMT
UNIT INTERVAL QUANTITY5.000
PHASESINGLE LOCATION NOT OTHERWISE SPECIFIED
FREQUENCY RATING60.0 HERTZ MAXIMUM SECOND ALTERNATE OPERATING POWER RQMT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
MILT11979Interchangeable
interchangeable cross-reference
interchangeable
TT179FGInterchangeable
interchangeable cross-reference
interchangeable
AN/FGC-25( )Interchangeable
interchangeable cross-reference
interchangeable
ANFGC25Interchangeable
interchangeable cross-reference
interchangeable
ANFGC25XInterchangeable
interchangeable cross-reference
interchangeable
AN/FGC-25XInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TT178FG?
TT178FG is a TELETYPEWRITER. It is classified as a MRO (MRO_GENERAL).
What parts can replace TT178FG?
There are 13 known substitutes for TT178FG: MILT11979, TT179FG, AN/FGC-25( ) and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TT178FG?
TT178FG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5815-00-543-1327. This indicates validated use in U.S. government and defense supply chains.
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