PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

82-6900Watch Glass Set

J & H Berge, Inc. Dba Lab Mart, the Div the Labmart · NSN 6640-00-447-4000 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-447-4000 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-447-4000. Primary manufacturer part number: 82-6900.
Features
  • Watch Glass Set — FSC 6640
  • Nondefinitive Spec/std Data: B TYPE
  • 2 verified cross-references
  • Primary manufacturer: J & H Berge, Inc. Dba Lab Mart, the Div the Labmart
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Watch Glass Set, cataloged under National Stock Number 6640-00-447-4000, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is J & H Berge, Inc. Dba Lab Mart, the Div the Labmart. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-00-447-4000
Primary Part Number82-6900
Item NameWatch Glass Set
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerJ & H Berge, Inc. Dba Lab Mart, the Div the Labmart
StatusACTIVE
Nondefinitive Spec/std DataB TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6640-00-273-70559985-75 INTERCHANGEABLE
Watch Glass,laboratory
Corning Glass Works
6640-00-290-67899985-100 INTERCHANGEABLE
Cover,beaker,laboratory
Corning Incorporated Dba Corning Div Corning Life Sciences
6640-00-290-6815 INTERCHANGEABLE
Watch Glass,laboratory
6640-00-848-82089985-125 INTERCHANGEABLE
Watch Glass,laboratory
Corning Incorporated Dba Corning Div Corning Life Sciences
4820-01-377-4104826900 INTERCHANGEABLE
Valve,rotary,selector
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
82-6900 PRIMARY J & H Berge, Inc. Dba Lab Mart, the Div the Labmart (USA)
DDW131 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
6640-00-273-7055INTERCHANGEABLE
WATCH GLASS,LABORATORY
9985-75
6640-00-290-6789INTERCHANGEABLE
COVER,BEAKER,LABORATORY
9985-100
6640-00-290-6815INTERCHANGEABLE
WATCH GLASS,LABORATORY
6640-00-848-8208INTERCHANGEABLE
WATCH GLASS,LABORATORY
9985-125
4820-01-377-4104INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
826900

Frequently Asked Questions

What is NSN 6640-00-447-4000?

NSN 6640-00-447-4000 is a Watch Glass Set, manufactured by J & H Berge, Inc. Dba Lab Mart, the Div the Labmart, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-00-447-4000?

NSN 6640-00-447-4000 has 2 cross-referenced part numbers: 82-6900 (J & H Berge, Inc. Dba Lab Mart, the Div the Labmart), DDW131 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 6640-00-447-4000?

There are 5 known substitutes for 6640-00-447-4000: 6640-00-273-7055, 6640-00-290-6789, 6640-00-290-6815 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 82-6900?

Key specifications for 82-6900: Nondefinitive Spec/std Data: B TYPE; Special Features: SET OF 6; CONSISTS OF 2 EA OF 37.5,75,AND 100 MM DIA; W/O HANDLE; CIRCULAR SHAPE; W/O LIP; NOT MATCHED WEIGHT TYPE; COLORLESS MM; Part Name Assigned by Controlling Agency: WATCH GLASS SET SET OF 6 CIRCULAR SHAPE W/O LIP W/O HANDLE. 3 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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