PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

08-73743Probe,sampling,gas Indicator

Mine Safety Appliances Company · NSN 6665-00-404-6439 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-404-6439 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-404-6439. Primary manufacturer part number: 08-73743.
Features
  • Probe,sampling,gas Indicator — FSC 6665
  • 2 verified cross-references
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Probe,sampling,gas Indicator, cataloged under National Stock Number 6665-00-404-6439, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mine Safety Appliances Company. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameProbe,sampling,gas Indicator
FSC / FSG6665 — No Item Name Available (FSG 66)
ManufacturersMine Safety Appliances Company (CAGE 55799)
Technical Specifications
ParameterValue
NSN6665-00-404-6439
Primary Part Number08-73743
Item NameProbe,sampling,gas Indicator
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4330-01-200-089373743 INTERCHANGEABLE
Adapter,fluid Filter
Vaponics Inc
4810-01-371-1417 INTERCHANGEABLE
Actuator,hydraulic-Pneumatic,rot
Cross-Reference Index
Part NumberManufacturer
08-73743 PRIMARY Mine Safety Appliances Company (USA)
73743 Mine Safety Appliances Company (USA)
Related Parts
4330-01-200-0893INTERCHANGEABLE
ADAPTER,FLUID FILTER
73743
4810-01-371-1417INTERCHANGEABLE
ACTUATOR,HYDRAULIC-PNEUMATIC,ROT

Frequently Asked Questions

What is NSN 6665-00-404-6439?

NSN 6665-00-404-6439 is a Probe,sampling,gas Indicator, manufactured by Mine Safety Appliances Company, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-404-6439?

NSN 6665-00-404-6439 has 2 cross-referenced part numbers: 08-73743 (Mine Safety Appliances Company), 73743 (Mine Safety Appliances Company).

What NSN replaces 6665-00-404-6439?

There are 2 known substitutes for 6665-00-404-6439: 4330-01-200-0893, 4810-01-371-1417. Verify interchangeability with system specifications before substitution.

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