PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1502AIndicator,temperature,thermocoup

Hart Scientific Llc · NSN 6685-01-589-5341 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-589-5341 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-589-5341. Primary manufacturer part number: 1502A.
Features
  • Indicator,temperature,thermocoup — FSC 6685
  • Height: 2.400 INCHES NOMINAL IN
  • Depth: 7.100 INCHES NOMINAL IN
  • Width: 5.600 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Hart Scientific Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,temperature,thermocoup, cataloged under National Stock Number 6685-01-589-5341, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hart Scientific Llc. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-589-5341
Primary Part Number1502A
Item NameIndicator,temperature,thermocoup
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHart Scientific Llc
StatusACTIVE
Height2.400 INCHES NOMINAL IN
Depth7.100 INCHES NOMINAL IN
Width5.600 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-156-1851 INTERCHANGEABLE
Bearing,ball,thrust
6685-00-791-277520-1000-02B60 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
5961-01-288-2767 INTERCHANGEABLE
Semiconductor Device,thyristor
Cross-Reference Index
Part NumberManufacturer
1502A PRIMARY Hart Scientific Llc (USA)
Related Parts
3110-00-156-1851INTERCHANGEABLE
BEARING,BALL,THRUST
6685-00-791-2775INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
20-1000-02B60
5961-01-288-2767INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR

Frequently Asked Questions

What is NSN 6685-01-589-5341?

NSN 6685-01-589-5341 is a Indicator,temperature,thermocoup, manufactured by Hart Scientific Llc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-589-5341?

NSN 6685-01-589-5341 has 1 cross-referenced part number: 1502A (Hart Scientific Llc).

What NSN replaces 6685-01-589-5341?

There are 3 known substitutes for 6685-01-589-5341: 3110-00-156-1851, 6685-00-791-2775, 5961-01-288-2767. Verify interchangeability with system specifications before substitution.

What are the specifications of 1502A?

Key specifications for 1502A: Height: 2.400 INCHES NOMINAL IN; Depth: 7.100 INCHES NOMINAL IN; Width: 5.600 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: TWEENER THERMOMETER 1502A A. 5 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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