PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1781Bearing,upper,centrifuge

Becton Dickinson and Co Primary Care Diagnostics Div · NSN 6640-01-302-2658 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-302-2658 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-302-2658. Primary manufacturer part number: 1781.
Features
  • Bearing,upper,centrifuge — FSC 6640
  • General Characteristics Item Description: FOR USE ON CENTRIFUGE,LABORATORY,SMALL; MDL. CL
  • Purchase Description Identification: 12717-1781
  • 1 verified cross-reference
  • Primary manufacturer: Becton Dickinson and Co Primary Care Diagnostics Div
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,upper,centrifuge, cataloged under National Stock Number 6640-01-302-2658, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Becton Dickinson and Co Primary Care Diagnostics Div. Government technical data includes 2 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-01-302-2658
Primary Part Number1781
Item NameBearing,upper,centrifuge
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerBecton Dickinson and Co Primary Care Diagnostics Div
StatusACTIVE
General Characteristics Item DescriptionFOR USE ON CENTRIFUGE,LABORATORY,SMALL; MDL. CL
Purchase Description Identification12717-1781
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-00-036-04491781 INTERCHANGEABLE
Diaphragm,valve,flat
Imi Cash Valve Inc
5940-00-202-023717-2 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
5120-00-293-0032 INTERCHANGEABLE
Pliers
3120-00-324-86581781 INTERCHANGEABLE
Bearing,sleeve
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
6645-00-515-4348 INTERCHANGEABLE
Clock,panel
5940-00-636-60251382B INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
6685-00-641-6126 INTERCHANGEABLE
Indicator,humidity,plug
4820-01-074-23973317508PC16 INTERCHANGEABLE
Stem,fluid Valve
Naval Sea Systems Command
4820-01-257-13951781 INTERCHANGEABLE
Rest,float,valve
Robert H Wager Co Inc
6740-01-382-8549 INTERCHANGEABLE
Adapter,photographic
Cross-Reference Index
Part NumberManufacturer
1781 PRIMARY Becton Dickinson and Co Primary Care Diagnostics Div (USA)
Related Parts
4820-00-036-0449INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
1781
5940-00-202-0237INTERCHANGEABLE
TERMINAL BOARD
17-2
5120-00-293-0032INTERCHANGEABLE
PLIERS
3120-00-324-8658INTERCHANGEABLE
BEARING,SLEEVE
1781
6645-00-515-4348INTERCHANGEABLE
CLOCK,PANEL
5940-00-636-6025INTERCHANGEABLE
TERMINAL BOARD
1382B
6685-00-641-6126INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG
4820-01-074-2397INTERCHANGEABLE
STEM,FLUID VALVE
3317508PC16
4820-01-257-1395INTERCHANGEABLE
REST,FLOAT,VALVE
1781
6740-01-382-8549INTERCHANGEABLE
ADAPTER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 6640-01-302-2658?

NSN 6640-01-302-2658 is a Bearing,upper,centrifuge, manufactured by Becton Dickinson and Co Primary Care Diagnostics Div, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-302-2658?

NSN 6640-01-302-2658 has 1 cross-referenced part number: 1781 (Becton Dickinson and Co Primary Care Diagnostics Div).

What NSN replaces 6640-01-302-2658?

There are 10 known substitutes for 6640-01-302-2658: 4820-00-036-0449, 5940-00-202-0237, 5120-00-293-0032 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1781?

Key specifications for 1781: Part Name Assigned by Controlling Agency: BEARING UPPER CENTRIFUGE END ITEM NSN 6640-00-930-9034; End Item Identification: 6640-00-930-9034; General Characteristics Item Description: FOR USE ON CENTRIFUGE,LABORATORY,SMALL; MDL. CL; Purchase Description Identification: 12717-1781. 4 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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