PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DDG541TYPE1CLASSAFunnel,filtering,laboratory

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 6640-00-426-0650 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-426-0650 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-426-0650. Primary manufacturer part number: DDG541TYPE1CLASSA.
Features
  • Funnel,filtering,laboratory — FSC 6640
  • Style Designator: DISK TYPE
  • Nondefinitive Spec/std Data: I CLASS
  • Overall Outside Diameter: 64.00 MILLIMETERS NOMINAL MM
  • Design Designation: BUECHNER
  • Capacity Rating: 150.000 MILLILITERS NOMINAL
  • Stem Length: 75.00 MILLIMETERS NOMINAL MM
  • Disk Diameter: 60.00 MILLIMETERS NOMINAL MM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Funnel,filtering,laboratory, cataloged under National Stock Number 6640-00-426-0650, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6640-00-426-0650
Primary Part NumberDDG541TYPE1CLASSA
Item NameFunnel,filtering,laboratory
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Style DesignatorDISK TYPE
Nondefinitive Spec/std DataI CLASS
Overall Outside Diameter64.00 MILLIMETERS NOMINAL MM
Design DesignationBUECHNER
Capacity Rating150.000 MILLILITERS NOMINAL
Stem Length75.00 MILLIMETERS NOMINAL MM
Disk Diameter60.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6640-00-848-8218 INTERCHANGEABLE
Funnel,separatory
6640-00-849-8758 INTERCHANGEABLE
Bead,laboratory
6640-00-893-6937 INTERCHANGEABLE
Bottle,aspirator
Cross-Reference Index
Part NumberManufacturer
DDG541TYPE1CLASSA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
DDF776CLASS1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS36092-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6640-00-848-8218INTERCHANGEABLE
FUNNEL,SEPARATORY
6640-00-849-8758INTERCHANGEABLE
BEAD,LABORATORY
6640-00-893-6937INTERCHANGEABLE
BOTTLE,ASPIRATOR

Frequently Asked Questions

What is NSN 6640-00-426-0650?

NSN 6640-00-426-0650 is a Funnel,filtering,laboratory, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 6640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6640-00-426-0650?

NSN 6640-00-426-0650 has 3 cross-referenced part numbers: DDG541TYPE1CLASSA (Federal Specifications Promulgated by General Services Administration Washington DC), DDF776CLASS1 (Federal Specifications Promulgated by General Services Administration Washington DC), MS36092-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6640-00-426-0650?

There are 3 known substitutes for 6640-00-426-0650: 6640-00-848-8218, 6640-00-849-8758, 6640-00-893-6937. Verify interchangeability with system specifications before substitution.

What are the specifications of DDG541TYPE1CLASSA?

Key specifications for DDG541TYPE1CLASSA: Style Designator: DISK TYPE; Nondefinitive Spec/std Data: I CLASS; Overall Outside Diameter: 64.00 MILLIMETERS NOMINAL MM; Design Designation: BUECHNER. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6640-00-426-0650 still in active supply?

NSN 6640-00-426-0650 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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