Scale Unit of Measure Inscription: MICROMHOS AND VOLTS, AC AND VOLTS, DC AND OHMS AND MILLIAMPERES, DC
Phase: SINGLE
Filament Voltage Rating in Volts: +1.500 TO 100.000
Frequency Rating: 60.0 HERTZ NOMINAL
Operation Method: DYNAMIC MUTUAL CONDUCTANCE
Furnished Items and Quantity: ANY ACCEPTABLE
Installation Design: PORTABLE
Identification
NSN: 6625-00-643-8553
NIIN: 006438553
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Test Set,electron Tube, cataloged under National Stock Number 6625-00-643-8553, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6625-00-643-8553
Item Name
Test Set,electron Tube
FSC / FSG
6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments
Status
ACTIVE
Scale Unit of Measure Inscription
MICROMHOS AND VOLTS, AC AND VOLTS, DC AND OHMS AND MILLIAMPERES, DC
Phase
SINGLE
Filament Voltage Rating in Volts
+1.500 TO 100.000
Frequency Rating
60.0 HERTZ NOMINAL
Operation Method
DYNAMIC MUTUAL CONDUCTANCE
Furnished Items and Quantity
ANY ACCEPTABLE
Installation Design
PORTABLE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
0Z1
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6625-00-000-0309
6625-00-000-0309 · Item name not on file
6625-00-000-0480
6625-00-000-0480 · Item name not on file
6625-00-001-1338
6625-00-001-1338 · Item name not on file
6625-00-001-1341
6625-00-001-1341 · Item name not on file
6625-00-001-1371
6625-00-001-1371 · Item name not on file
6625-00-001-1373
6625-00-001-1373 · Item name not on file
6625-00-001-1374
6625-00-001-1374 · Item name not on file
6625-00-001-1377
SWEEP GENERATOR SUBASSEMBLY
Frequently Asked Questions
What is NSN 6625-00-643-8553?
NSN 6625-00-643-8553 is a Test Set,electron Tube, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
What are the specifications of 6625-00-643-8553?
Key specifications for 6625-00-643-8553: Scale Unit of Measure Inscription: MICROMHOS AND VOLTS, AC AND VOLTS, DC AND OHMS AND MILLIAMPERES, DC; Phase: SINGLE; Filament Voltage Rating in Volts: +1.500 TO 100.000; Frequency Rating: 60.0 HERTZ NOMINAL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6625-00-643-8553 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.