PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M194Cell Assembly,optical Instrument

Gaertner Scientific Corporation · NSN 6650-00-139-4854 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-00-139-4854 — this item is cataloged by the U.S. Government under National Stock Number 6650-00-139-4854. Primary manufacturer part number: M194.
Features
  • Cell Assembly,optical Instrument — FSC 6650
  • Material: GLASS
  • Optical Element Type: PRISM AND RETICLE
  • Optical Element Quantity: 2
  • Eccentric Construction: NOT PROVIDED
  • 1 verified cross-reference
  • Primary manufacturer: Gaertner Scientific Corporation
Applications
  • Applications requiring Glass construction
General Description

The Cell Assembly,optical Instrument, cataloged under National Stock Number 6650-00-139-4854, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Gaertner Scientific Corporation. Government technical data includes 4 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-00-139-4854
Primary Part NumberM194
Item NameCell Assembly,optical Instrument
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerGaertner Scientific Corporation
StatusACTIVE
MaterialGLASS
Optical Element TypePRISM AND RETICLE
Optical Element Quantity2
Eccentric ConstructionNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-156-5346 INTERCHANGEABLE
Bearing,ball,annular
5340-00-302-5883 INTERCHANGEABLE
Cap,protective,dust and Moisture
5845-01-702-5288M194 INTERCHANGEABLE
Transducer,sonar
Airmar Technology Corp Dba Airmar Technology Corp
Cross-Reference Index
Part NumberManufacturer
M194 PRIMARY Gaertner Scientific Corporation (USA)
Related Parts
3110-00-156-5346INTERCHANGEABLE
BEARING,BALL,ANNULAR
5340-00-302-5883INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
5845-01-702-5288INTERCHANGEABLE
TRANSDUCER,SONAR
M194

Frequently Asked Questions

What is NSN 6650-00-139-4854?

NSN 6650-00-139-4854 is a Cell Assembly,optical Instrument, manufactured by Gaertner Scientific Corporation, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-00-139-4854?

NSN 6650-00-139-4854 has 1 cross-referenced part number: M194 (Gaertner Scientific Corporation).

What NSN replaces 6650-00-139-4854?

There are 3 known substitutes for 6650-00-139-4854: 3110-00-156-5346, 5340-00-302-5883, 5845-01-702-5288. Verify interchangeability with system specifications before substitution.

What are the specifications of M194?

Key specifications for M194: Material: GLASS; Optical Element Type: PRISM AND RETICLE; Optical Element Quantity: 2; Special Features: OPTICAL AXIS BENT 90 DEG; 90 DEG CROSSHAIRS. 5 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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