The Temperature Indicating Compound, cataloged under National Stock Number 6685-01-696-5926, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is La-Co Industries, Inc. Dba Markal Company. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-696-5926 |
| Primary Part Number | 86517 |
| Item Name | Temperature Indicating Compound |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | La-Co Industries, Inc. Dba Markal Company |
| Status | ACTIVE |
| Temp Rating | 200.0 FAHRENHEIT DEGF |
| Physical Form | CRAYON |
| Functional Description | WHEN DESIRED TEMPERATURE IS REACHED, THE MARK QUICKLY MELTS TO A GLOSSY TRANSPARENT LQUID |
| Usage Design | FAST METHOD FOR MEASURING SURFACE TEMPERATURE |
| Diameter | 0.50 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 86517 PRIMARY | La-Co Industries, Inc. Dba Markal Company (USA) |
| Reference | Meaning |
|---|---|
| 11B4600170 | 7/2 Vendor item drawing reference Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 6685-01-696-5926 is a Temperature Indicating Compound, manufactured by La-Co Industries, Inc. Dba Markal Company, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-696-5926 has 1 manufacturer part number on file: 86517 (La-Co Industries, Inc. Dba Markal Company).
1 possible match (shared part number, not a government interchangeability claim): 7530-01-714-0761. Verify interchangeability with system specifications before substitution.
Key specifications for 86517: Temp Rating: 200.0 FAHRENHEIT DEGF; Physical Form: CRAYON; Special Features: ACCURACY PLUS/MINUS 1 PERCENT;LENGTH = 5.0 INCHES IN; Functional Description: WHEN DESIRED TEMPERATURE IS REACHED, THE MARK QUICKLY MELTS TO A GLOSSY TRANSPARENT LQUID. 5 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.