PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3604-A-1-1Tester,pyrometer and Thermocoupl

King Nutronics Corporation Dba King Nutronics · NSN 6685-01-044-4966 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-044-4966 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-044-4966. Primary manufacturer part number: 3604-A-1-1.
Features
  • Tester,pyrometer and Thermocoupl — FSC 6685
  • Scale Accuracy: 1 DEG F TO 600 DEG F, 0.2% OF SET POINT ABOVE 600 DEG F DEGF
  • Measurement Type: BRIDGE CIRCUIT
  • Case Type: HINGED LID CARRYING CASE W/HANDLE
  • Functional Description: SELF CONTAINED TEMP TEST SYSTEM USED TO TEST A VARIETY OF TEMP INSTRUMENTS IN THE RANGE OF 100 DEG F TO 1200 DEG F; TESTS AND CALIBRATES THERMOCOUPLES, THERMAL SWITCHES, THERMISTORS, TEMP CONTROL SYSTEMS AND TEMP INDICATORS DEGF
  • Supplementary Features: MANUFACTURERS NAME: PORTABLE DRY WELL TEMPERATURE CALIBRATION SYSTEM
  • Scale Calibration: PORTABLE DRY WELL TEMPERATURE CALIBRATOR
  • Scale Range: +100.0 TO 1200.0 DEG FAHRENHEIT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tester,pyrometer and Thermocoupl, cataloged under National Stock Number 6685-01-044-4966, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is King Nutronics Corporation Dba King Nutronics. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-044-4966
Primary Part Number3604-A-1-1
Item NameTester,pyrometer and Thermocoupl
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerKing Nutronics Corporation Dba King Nutronics
StatusACTIVE
Scale Accuracy1 DEG F TO 600 DEG F, 0.2% OF SET POINT ABOVE 600 DEG F DEGF
Measurement TypeBRIDGE CIRCUIT
Case TypeHINGED LID CARRYING CASE W/HANDLE
Functional DescriptionSELF CONTAINED TEMP TEST SYSTEM USED TO TEST A VARIETY OF TEMP INSTRUMENTS IN THE RANGE OF 100 DEG F TO 1200 DEG F; TESTS AND CALIBRATES THERMOCOUPLES, THERMAL SWITCHES, THERMISTORS, TEMP CONTROL SYSTEMS AND TEMP INDICATORS DEGF
Supplementary FeaturesMANUFACTURERS NAME: PORTABLE DRY WELL TEMPERATURE CALIBRATION SYSTEM
Scale CalibrationPORTABLE DRY WELL TEMPERATURE CALIBRATOR
Scale Range+100.0 TO 1200.0 DEG FAHRENHEIT
Installation DesignPORTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5306-00-426-46243604A INTERCHANGEABLE
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
6220-00-719-771336041-1 INTERCHANGEABLE
Lens,light
Grimes Aerospace Company
5305-01-134-072603280-06 INTERCHANGEABLE
Screw,cap,hexagon Head
Defense Logistics Agency Dba Defense Supply Center Philadelphia
Cross-Reference Index
Part NumberManufacturer
600S-2 Ametek Inc (USA)
3604-A King Nutronics Corporation Dba King Nutronics (USA)
3604-A-1-1 PRIMARY King Nutronics Corporation Dba King Nutronics (USA)
3604-1-1 King Nutronics Corporation Dba King Nutronics (USA)
3604 King Nutronics Corporation Dba King Nutronics (USA)
76-602-115/E137 PRIMARY Ametek Inc (USA)
Related Parts
5306-00-426-4624INTERCHANGEABLE
BOLT,MACHINE
3604A
6220-00-719-7713INTERCHANGEABLE
LENS,LIGHT
36041-1
5305-01-134-0726INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
03280-06

Frequently Asked Questions

What is NSN 6685-01-044-4966?

NSN 6685-01-044-4966 is a Tester,pyrometer and Thermocoupl, manufactured by King Nutronics Corporation Dba King Nutronics, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-044-4966?

NSN 6685-01-044-4966 has 6 cross-referenced part numbers: 600S-2 (Ametek Inc), 3604-A (King Nutronics Corporation Dba King Nutronics), 3604-A-1-1 (King Nutronics Corporation Dba King Nutronics), 3604-1-1 (King Nutronics Corporation Dba King Nutronics), 3604 (King Nutronics Corporation Dba King Nutronics) and 1 more.

What NSN replaces 6685-01-044-4966?

There are 3 known substitutes for 6685-01-044-4966: 5306-00-426-4624, 6220-00-719-7713, 5305-01-134-0726. Verify interchangeability with system specifications before substitution.

What are the specifications of 3604-A-1-1?

Key specifications for 3604-A-1-1: Scale Accuracy: 1 DEG F TO 600 DEG F, 0.2% OF SET POINT ABOVE 600 DEG F DEGF; Measurement Type: BRIDGE CIRCUIT; Case Type: HINGED LID CARRYING CASE W/HANDLE; Special Features: DRY WELL TEMP CHAMBER 1 INCH DIAMETER BY 6 INCHES DEEP; DIRECT READING DIGITAL THUMBWHEEL SWITCH CONTROL; SENSOR PLATINUM RESISTANCE THERMOMETER; SOLID STATE ELECTRONICS; INSERT TYPE ADAPTER CHUCKS MADE OF PLATED COPPER; 1300 DEG F THERMAL FUSE; INPUT POWER 115 VAC, 50/60 HZ; 4 ADAPTER CHUCKS SIZES 1/4, 3/8, 7/16, AND 9/16 INCH BORE DIAMETER VAC. 12 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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