The Thermowell, cataloged under National Stock Number 6685-01-263-8206, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-263-8206 |
| Item Name | Thermowell |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-S-763, CLASS 316 FED SPEC 1ST MATERIAL RESPONSE |
| Specification/standard Data | 81349-MIL-E-24270/4A GOVERNMENT SPECIFICATION A |
| Material | STEEL COMP 316 |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| W6F5 | 3/1 Design control — primary reference Weksler Glass Thermometer Corp |
| MIL-W-24270/4A | 5/1 Secondary reference U.S. Government activity |
| CAT. 225 | 5/1 Secondary reference Weksler Glass Thermometer Corp |
NSN 6685-01-263-8206 is a Thermowell, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6685-01-406-5341. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-263-8206: Criticality Code Justification: ZZZY; Material Document and Classification: QQ-S-763, CLASS 316 FED SPEC 1ST MATERIAL RESPONSE; Specification/standard Data: 81349-MIL-E-24270/4A GOVERNMENT SPECIFICATION A; Material: STEEL COMP 316. 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.
NSN 6685-01-263-8206 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.