PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

720BDetector,gas

Test Products International Inc. Dba Tpi · NSN 6665-01-585-5566 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-01-585-5566 — this item is cataloged by the U.S. Government under National Stock Number 6665-01-585-5566. Primary manufacturer part number: 720B.
Features
  • Detector,gas — FSC 6665
  • Detecting Element Type: SOLID STATE
  • Voltage Rating: 3.0 VOLTS NOMINAL
  • Detecting Element Detachability: DETACHABLE
  • 1 verified cross-reference
  • Primary manufacturer: Test Products International Inc. Dba Tpi
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Detector,gas, cataloged under National Stock Number 6665-01-585-5566, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Test Products International Inc. Dba Tpi. Government technical data includes 3 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6665-01-585-5566
Primary Part Number720B
Item NameDetector,gas
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerTest Products International Inc. Dba Tpi
StatusACTIVE
Detecting Element TypeSOLID STATE
Voltage Rating3.0 VOLTS NOMINAL
Detecting Element DetachabilityDETACHABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6625-00-001-6927720B INTERCHANGEABLE
Meter,field Strength
General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division
3830-00-218-0158 INTERCHANGEABLE
Vane,rotor
1650-00-564-0393720B INTERCHANGEABLE
Valve Assembly,fuel
Auto-Valve, Inc
5975-01-049-62552122 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
4920-01-246-8334 INTERCHANGEABLE
Laminar Flow Bench
Cross-Reference Index
Part NumberManufacturer
720B PRIMARY Test Products International Inc. Dba Tpi (USA)
Related Parts
6625-00-001-6927INTERCHANGEABLE
METER,FIELD STRENGTH
720B
3830-00-218-0158INTERCHANGEABLE
VANE,ROTOR
1650-00-564-0393INTERCHANGEABLE
VALVE ASSEMBLY,FUEL
720B
5975-01-049-6255INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2122
4920-01-246-8334INTERCHANGEABLE
LAMINAR FLOW BENCH

Frequently Asked Questions

What is NSN 6665-01-585-5566?

NSN 6665-01-585-5566 is a Detector,gas, manufactured by Test Products International Inc. Dba Tpi, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-01-585-5566?

NSN 6665-01-585-5566 has 1 cross-referenced part number: 720B (Test Products International Inc. Dba Tpi).

What NSN replaces 6665-01-585-5566?

There are 5 known substitutes for 6665-01-585-5566: 6625-00-001-6927, 3830-00-218-0158, 1650-00-564-0393 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 720B?

Key specifications for 720B: Overall Width: 3.000 INCHES NOMINAL IN; Overall Length: 1.750 INCHES NOMINAL IN; Overall Height: 9.500 INCHES NOMINAL IN; Detecting Element Type: SOLID STATE. 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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