PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

667Test Set,electron Tube

Eico Electronic Instrument Co Inc · NSN 6625-00-912-9899 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-912-9899 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-912-9899. Primary manufacturer part number: 667.
Features
  • Test Set,electron Tube — FSC 6625
  • Material: STEEL CASE
  • Phase: SINGLE
  • Case Surface Treatment: ENAMEL
  • Operation Method: EMISSION
  • Installation Design: PORTABLE
  • Scale Unit of Measure Inscription: MICROHM AND MILLIAMPERES, DC
  • Material: STEEL CASE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Case construction
General Description

The Test Set,electron Tube, cataloged under National Stock Number 6625-00-912-9899, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Eico Electronic Instrument Co Inc. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-912-9899
Primary Part Number667
Item NameTest Set,electron Tube
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerEico Electronic Instrument Co Inc
StatusACTIVE
MaterialSTEEL CASE
PhaseSINGLE
Case Surface TreatmentENAMEL
Operation MethodEMISSION
Installation DesignPORTABLE
Scale Unit of Measure InscriptionMICROHM AND MILLIAMPERES, DC
MaterialSTEEL CASE
PhaseSINGLE
Case Surface TreatmentENAMEL
Operation MethodEMISSION
Installation DesignPORTABLE
Scale Unit of Measure InscriptionMICROHM AND MILLIAMPERES, DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeVH
Weight48.2000 lbs
Cube2.7344 cu ft
Verified Substitutes 12
5365-00-070-5456667 INTERCHANGEABLE
Spacer,sleeve
Kay Elemetrics Corporation
3030-00-253-8345667 INTERCHANGEABLE
Belt,v
Gates Corporation
5210-00-267-30955210-00-267-3095 INTERCHANGEABLE
Gage Stock Set,thickness
General Services Administration Federal Supply Service
2030-00-319-4805667 INTERCHANGEABLE
Spring Leaf
Struthers Wells Corp
6240-00-433-27071977 INTERCHANGEABLE
Lamp,incandescent
Micro Lamps Inc.
5910-00-482-04586049-6112 INTERCHANGEABLE
Capacitor,variable,gas Dielectri
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
6640-00-494-3828667 INTERCHANGEABLE
Cushion,laboratory Centrifuge Ve
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
5210-00-517-8097 INTERCHANGEABLE
Gage,thickness
5210-00-753-3453SM-B-332965 INTERCHANGEABLE
Gage Stock Set,thickness
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5985-00-880-2049667 INTERCHANGEABLE
Waveguide Assembly
Waveline Inc
Cross-Reference Index
Part NumberManufacturer
667 Eico Electronic Instrument Co Inc (USA)
Related Parts
5365-00-070-5456INTERCHANGEABLE
SPACER,SLEEVE
667
3030-00-253-8345INTERCHANGEABLE
BELT,V
667
5210-00-267-3095INTERCHANGEABLE
GAGE STOCK SET,THICKNESS
5210-00-267-3095
2030-00-319-4805INTERCHANGEABLE
SPRING LEAF
667
6240-00-433-2707INTERCHANGEABLE
LAMP,INCANDESCENT
1977
5910-00-482-0458INTERCHANGEABLE
CAPACITOR,VARIABLE,GAS DIELECTRI
6049-6112
6640-00-494-3828INTERCHANGEABLE
CUSHION,LABORATORY CENTRIFUGE VE
667
5210-00-517-8097INTERCHANGEABLE
GAGE,THICKNESS
5210-00-753-3453INTERCHANGEABLE
GAGE STOCK SET,THICKNESS
SM-B-332965
5985-00-880-2049INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
667
5210-00-956-5768INTERCHANGEABLE
BLADE,THICKNESS GAGE
667-17
5210-00-956-5772INTERCHANGEABLE
BLADE,THICKNESS GAGE
667-016

Frequently Asked Questions

What is NSN 6625-00-912-9899?

NSN 6625-00-912-9899 is a Test Set,electron Tube, manufactured by Eico Electronic Instrument Co Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-912-9899?

NSN 6625-00-912-9899 has 1 cross-referenced part number: 667 (Eico Electronic Instrument Co Inc).

What NSN replaces 6625-00-912-9899?

There are 12 known substitutes for 6625-00-912-9899: 5365-00-070-5456, 3030-00-253-8345, 5210-00-267-3095 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 667?

Key specifications for 667: Overall Depth: 4.500 INCHES NOMINAL IN; Material: STEEL CASE; Phase: SINGLE; Case Surface Treatment: ENAMEL. 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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