PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

THERMOMELTTemperature Indicating Compound

Markal Co · NSN 6685-00-938-0433 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-938-0433 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-938-0433. Primary manufacturer part number: THERMOMELT.
Features
  • Temperature Indicating Compound — FSC 6685
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY TEMPERATURE RATING,PHYSICAL FORM AND SPECIAL FEATURES
  • Physical Form: CRAYON
  • Temp Rating: 175.0 FAHRENHEIT DEGF
  • 1 verified cross-reference
  • Primary manufacturer: Markal Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Temperature Indicating Compound, cataloged under National Stock Number 6685-00-938-0433, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Markal Co. 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
NSN6685-00-938-0433
Primary Part NumberTHERMOMELT
Item NameTemperature Indicating Compound
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMarkal Co
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY TEMPERATURE RATING,PHYSICAL FORM AND SPECIAL FEATURES
Physical FormCRAYON
Temp Rating175.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-00-880-1293 INTERCHANGEABLE
Temperature Indicating Compound
6685-00-938-0431TS0163 INTERCHANGEABLE
Temperature Indicating Compound
Tempil, Inc. Dba Tempil, Inc.
6685-00-938-0434TEMPILSTIK 182 INTERCHANGEABLE
Temperature Indicating Compound
Tempil, Inc. Dba Tempil, Inc.
Cross-Reference Index
Part NumberManufacturer
THERMOMELT Markal Co (USA)
Related Parts
6685-00-880-1293INTERCHANGEABLE
TEMPERATURE INDICATING COMPOUND
6685-00-938-0431INTERCHANGEABLE
TEMPERATURE INDICATING COMPOUND
TS0163
6685-00-938-0434INTERCHANGEABLE
TEMPERATURE INDICATING COMPOUND
TEMPILSTIK 182

Frequently Asked Questions

What is NSN 6685-00-938-0433?

NSN 6685-00-938-0433 is a Temperature Indicating Compound, manufactured by Markal Co, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-938-0433?

NSN 6685-00-938-0433 has 1 cross-referenced part number: THERMOMELT (Markal Co).

What NSN replaces 6685-00-938-0433?

There are 3 known substitutes for 6685-00-938-0433: 6685-00-880-1293, 6685-00-938-0431, 6685-00-938-0434. Verify interchangeability with system specifications before substitution.

What are the specifications of THERMOMELT?

Key specifications for THERMOMELT: Special Features: HEXAGON CROSS SECTION,0.375 IN. ACROSS FLATS IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY TEMPERATURE RATING,PHYSICAL FORM AND SPECIAL FEATURES; Physical Form: CRAYON; Temp Rating: 175.0 FAHRENHEIT DEGF. 4 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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