PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

173125Stopper,bottle

Hach Company Dba Hach Co · NSN 6640-01-731-9683 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-731-9683 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-731-9683. Primary manufacturer part number: 173125.
Features
  • Stopper,bottle — FSC 6640
  • Opening Inside Diameter for Which Designed: 18.0 MILLIMETERS NOMINAL MM
  • 4 verified cross-references
  • Primary manufacturer: Hach Company Dba Hach Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Stopper,bottle, cataloged under National Stock Number 6640-01-731-9683, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hach Company Dba Hach Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN6640-01-731-9683
Primary Part Number173125
Item NameStopper,bottle
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerHach Company Dba Hach Co
StatusACTIVE
Opening Inside Diameter for Which Designed18.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2530-00-128-0727221-S INTERCHANGEABLE
Parts Kit,air-Hydraulic Brake SL
Motive Parts Co of America Inc
5315-00-342-0850SSCY108PN INTERCHANGEABLE
Pin,straight,headless
Stein Seal Company
5940-00-615-24756053 INTERCHANGEABLE
Terminal,stud
Te Connectivity Corporation Dba Microdot Products
5962-00-626-36261820-1052 INTERCHANGEABLE
Microcircuit,digital
Hewlett-Packard Company Dba HP
6650-01-450-97671692569 INTERCHANGEABLE
Case,optical Instrument
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
50-199-4593 Fisher Scientific Company L.l.c. (USA)
1692569 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
173125 PRIMARY Hach Company Dba Hach Co (USA)
6515NCM251726 Defense Medical Standardization Board (USA)
Related Parts
2530-00-128-0727INTERCHANGEABLE
PARTS KIT,AIR-HYDRAULIC BRAKE SL
221-S
5315-00-342-0850INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
SSCY108PN
5940-00-615-2475INTERCHANGEABLE
TERMINAL,STUD
6053
5962-00-626-3626INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1820-1052
6650-01-450-9767INTERCHANGEABLE
CASE,OPTICAL INSTRUMENT
1692569

Frequently Asked Questions

What is NSN 6640-01-731-9683?

NSN 6640-01-731-9683 is a Stopper,bottle, manufactured by Hach Company Dba Hach Co, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-731-9683?

NSN 6640-01-731-9683 has 4 cross-referenced part numbers: 50-199-4593 (Fisher Scientific Company L.l.c.), 1692569 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 173125 (Hach Company Dba Hach Co), 6515NCM251726 (Defense Medical Standardization Board).

What NSN replaces 6640-01-731-9683?

There are 5 known substitutes for 6640-01-731-9683: 2530-00-128-0727, 5315-00-342-0850, 5940-00-615-2475 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 173125?

Key specifications for 173125: Part Name Assigned by Controlling Agency: STOPPER FOR 18MM TUBE, PK/25 MM; Opening Inside Diameter for Which Designed: 18.0 MILLIMETERS NOMINAL MM; Special Features: STOPPER FOR 18MM TUBE, PK/25. USED IN MULTIPLE TESTS AS A STOPPER FOR VIEWING TUBES AND SAMPLE CELLS, AND AS A CAP FOR ACCUVAC AMPULES. MM. 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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