PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1221Generator,signal

Visual Information Institute Inc Dba V I I Craft · NSN 6625-01-254-4750 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-254-4750 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-254-4750. Primary manufacturer part number: 1221.
Features
  • Generator,signal — FSC 6625
  • Current Type: DC
  • Mounting Type: CABINET
  • Frequency Rating: 60.0 HERTZ MAXIMUM
  • Frequency Range Rating: +10.000 TO 100.000 KILOHERTZ
  • Output Impedance Rating: 75.0 OHMS NOMINAL
  • Voltage Rating: 135.0 VOLTS MAXIMUM
  • Current Type: DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Generator,signal, cataloged under National Stock Number 6625-01-254-4750, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Visual Information Institute Inc Dba V I I Craft. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-01-254-4750
Primary Part Number1221
Item NameGenerator,signal
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerVisual Information Institute Inc Dba V I I Craft
StatusACTIVE
Current TypeDC
Mounting TypeCABINET
Frequency Rating60.0 HERTZ MAXIMUM
Frequency Range Rating+10.000 TO 100.000 KILOHERTZ
Output Impedance Rating75.0 OHMS NOMINAL
Voltage Rating135.0 VOLTS MAXIMUM
Current TypeDC
Mounting TypeCABINET
Frequency Rating60.0 HERTZ MAXIMUM
Frequency Range Rating+10.000 TO 100.000 KILOHERTZ
Output Impedance Rating75.0 OHMS NOMINAL
Voltage Rating135.0 VOLTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5999-00-194-77471221 INTERCHANGEABLE
Clip,electrical
Littelfuse, Inc.
6625-00-278-6884122-1 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
6145-00-335-13364016206-0701 INTERCHANGEABLE
Braid,wire
Raytheon Company Dba Raytheon Co
6625-01-090-427426594 INTERCHANGEABLE
Ammeter
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
6625-01-090-575126596 INTERCHANGEABLE
Ammeter
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
6625-01-106-415926592 INTERCHANGEABLE
Voltmeter
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
7025-01-523-64941221 INTERCHANGEABLE
Interface Unit,automatic Data Pr
Unibrain Inc.
Cross-Reference Index
Part NumberManufacturer
1221 PRIMARY Visual Information Institute Inc Dba V I I Craft (USA)
Related Parts
5999-00-194-7747INTERCHANGEABLE
CLIP,ELECTRICAL
1221
6625-00-278-6884INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
122-1
6145-00-335-1336INTERCHANGEABLE
BRAID,WIRE
4016206-0701
6625-01-090-4274INTERCHANGEABLE
AMMETER
26594
6625-01-090-5751INTERCHANGEABLE
AMMETER
26596
6625-01-106-4159INTERCHANGEABLE
VOLTMETER
26592
7025-01-523-6494INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
1221

Frequently Asked Questions

What is NSN 6625-01-254-4750?

NSN 6625-01-254-4750 is a Generator,signal, manufactured by Visual Information Institute Inc Dba V I I Craft, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-254-4750?

NSN 6625-01-254-4750 has 1 cross-referenced part number: 1221 (Visual Information Institute Inc Dba V I I Craft).

What NSN replaces 6625-01-254-4750?

There are 7 known substitutes for 6625-01-254-4750: 5999-00-194-7747, 6625-00-278-6884, 6145-00-335-1336 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1221?

Key specifications for 1221: Current Type: DC; Mounting Type: CABINET; Frequency Rating: 60.0 HERTZ MAXIMUM; Overall Length: 17.000 INCHES NOMINAL IN. 18 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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