PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-665Brush,scale Pan,laboratory

Fisher Scientific Company L.l.c. · NSN 6640-00-973-5721 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-973-5721 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-973-5721. Primary manufacturer part number: 3-665.
Features
  • Brush,scale Pan,laboratory — FSC 6640
  • Stock Exposed Length: 0.875 INCHES MINIMUM IN
  • Angular Edge: NOT INCLUDED
  • Stock Shape at Ferrule: FLAT
  • Stock Width: 1.000 INCHES NOMINAL IN
  • Edge Type: DOME TOP
  • Stock Thickness: 0.250 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Brush,scale Pan,laboratory, cataloged under National Stock Number 6640-00-973-5721, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fisher Scientific Company L.l.c.. Government technical data includes 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-00-973-5721
Primary Part Number3-665
Item NameBrush,scale Pan,laboratory
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerFisher Scientific Company L.l.c.
StatusACTIVE
Stock Exposed Length0.875 INCHES MINIMUM IN
Angular EdgeNOT INCLUDED
Stock Shape at FerruleFLAT
Stock Width1.000 INCHES NOMINAL IN
Edge TypeDOME TOP
Stock Thickness0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5320-00-257-4079 INTERCHANGEABLE
Rivet,tubular
6105-00-760-3962 INTERCHANGEABLE
Motor,direct Current
4130-00-789-2398123447 INTERCHANGEABLE
Filter Element,air Conditioning
Falls Filtration Technologies, Inc.
1680-00-933-60363665 INTERCHANGEABLE
Disk Assembly,brake
Aerocontrolex Group, Inc. Div Talley Actuators
6640-00-973-5720 INTERCHANGEABLE
Brush,scale Pan,laboratory
5820-01-097-1093 INTERCHANGEABLE
Pechan Prism Housing
5340-01-129-849936651 INTERCHANGEABLE
Retainer,helical Compression Spr
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5120-01-161-19205120-01-161-1920 INTERCHANGEABLE
Blade,nutdriver
General Services Administration Federal Supply Service
5930-01-315-36593665 INTERCHANGEABLE
Switch,sensitive
Ticonium Co Div Cmp Industries Inc
6625-01-526-8176 INTERCHANGEABLE
Test Set,insulation Breakdown
Cross-Reference Index
Part NumberManufacturer
3-665 Fisher Scientific Company L.l.c. (USA)
3-665-1 Fisher Scientific Company L.l.c. (USA)
3-665 Fisher Scientific Worldwide (USA)
Related Parts
5320-00-257-4079INTERCHANGEABLE
RIVET,TUBULAR
6105-00-760-3962INTERCHANGEABLE
MOTOR,DIRECT CURRENT
4130-00-789-2398INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
123447
1680-00-933-6036INTERCHANGEABLE
DISK ASSEMBLY,BRAKE
3665
6640-00-973-5720INTERCHANGEABLE
BRUSH,SCALE PAN,LABORATORY
5820-01-097-1093INTERCHANGEABLE
PECHAN PRISM HOUSING
5340-01-129-8499INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
36651
5120-01-161-1920INTERCHANGEABLE
BLADE,NUTDRIVER
5120-01-161-1920
5930-01-315-3659INTERCHANGEABLE
SWITCH,SENSITIVE
3665
6625-01-526-8176INTERCHANGEABLE
TEST SET,INSULATION BREAKDOWN
6515-01-541-3140INTERCHANGEABLE
BAG,COLLECTION,EXTERNAL DRAINAGE
3665
6680-01-594-7495INTERCHANGEABLE
TACHOMETER,ELECTRONIC
3665

Frequently Asked Questions

What is NSN 6640-00-973-5721?

NSN 6640-00-973-5721 is a Brush,scale Pan,laboratory, manufactured by Fisher Scientific Company L.l.c., classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-00-973-5721?

NSN 6640-00-973-5721 has 3 cross-referenced part numbers: 3-665 (Fisher Scientific Company L.l.c.), 3-665-1 (Fisher Scientific Company L.l.c.), 3-665 (Fisher Scientific Worldwide).

What NSN replaces 6640-00-973-5721?

There are 12 known substitutes for 6640-00-973-5721: 5320-00-257-4079, 6105-00-760-3962, 4130-00-789-2398 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-665?

Key specifications for 3-665: Stock Exposed Length: 0.875 INCHES MINIMUM IN; Angular Edge: NOT INCLUDED; Stock Shape at Ferrule: FLAT; Stock Width: 1.000 INCHES NOMINAL IN. 6 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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