PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

89300Temperature Indicating Compound

Markal Co · NSN 6685-00-255-9518 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-255-9518 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-255-9518. Primary manufacturer part number: 89300.
Features
  • Temperature Indicating Compound — FSC 6685
  • Temp Rating: 300.0 FAHRENHEIT DEGF
  • Physical Form: CRAYON
  • Diameter: 0.375 INCHES IN
  • 6 verified cross-references
  • 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 6685-00-255-9518, 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 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-255-9518
Primary Part Number89300
Item NameTemperature Indicating Compound
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMarkal Co
StatusCANCELLED
Temp Rating300.0 FAHRENHEIT DEGF
Physical FormCRAYON
Diameter0.375 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5935-00-324-8782SC-C-64972 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1680-00-499-006789300 INTERCHANGEABLE
Drive Tube Assy,act
Thomas Instrument, Incorporated
5365-00-529-844910950 INTERCHANGEABLE
Spacer,sleeve
Eaton Corporation
1650-00-918-2856 INTERCHANGEABLE
Retainer,venturi Ri
5950-01-023-1492 INTERCHANGEABLE
Coil,radio Frequency
4920-01-105-2128 INTERCHANGEABLE
Tube Assembly,intake
4820-01-189-8820893-00 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
8040-01-536-035028026 INTERCHANGEABLE
Adhesive
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
CUSTOMSTIK 300 DEG F Custom Technology Inc (USA)
TEMPILSTIK 300F Tempil, Inc. Dba Tempil, Inc. (USA)
THERMOMELT 300F Markal Co (USA)
TEMPSTIK 300 Tempil, Inc. Dba Tempil, Inc. (USA)
89300 PRIMARY Markal Co (USA)
28026 Tempil, Inc. Dba Tempil, Inc. (USA)
Related Parts
5935-00-324-8782INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SC-C-64972
1680-00-499-0067INTERCHANGEABLE
DRIVE TUBE ASSY,ACT
89300
5365-00-529-8449INTERCHANGEABLE
SPACER,SLEEVE
10950
1650-00-918-2856INTERCHANGEABLE
RETAINER,VENTURI RI
5950-01-023-1492INTERCHANGEABLE
COIL,RADIO FREQUENCY
4920-01-105-2128INTERCHANGEABLE
TUBE ASSEMBLY,INTAKE
4820-01-189-8820INTERCHANGEABLE
STEM,FLUID VALVE
893-00
8040-01-536-0350INTERCHANGEABLE
ADHESIVE
28026

Frequently Asked Questions

What is NSN 6685-00-255-9518?

NSN 6685-00-255-9518 is a Temperature Indicating Compound, manufactured by Markal Co, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-255-9518?

NSN 6685-00-255-9518 has 6 cross-referenced part numbers: CUSTOMSTIK 300 DEG F (Custom Technology Inc), TEMPILSTIK 300F (Tempil, Inc. Dba Tempil, Inc.), THERMOMELT 300F (Markal Co), TEMPSTIK 300 (Tempil, Inc. Dba Tempil, Inc.), 89300 (Markal Co) and 1 more.

What NSN replaces 6685-00-255-9518?

There are 8 known substitutes for 6685-00-255-9518: 5935-00-324-8782, 1680-00-499-0067, 5365-00-529-8449 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 89300?

Key specifications for 89300: Temp Rating: 300.0 FAHRENHEIT DEGF; Physical Form: CRAYON; Diameter: 0.375 INCHES IN; End Item Identification: NUCLEAR REACTORS PROGRAM. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-255-9518 still in active supply?

NSN 6685-00-255-9518 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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