The Thermowell, cataloged under National Stock Number 6685-01-507-4342, 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 Johnson Controls Navy Systems, Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-507-4342 |
| Primary Part Number | 077-07391 |
| Item Name | Thermowell |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Style Designator | WELDED TAPERED SHANK SOCKET |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 077-07391 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 376-96233-000 | D/9 Drawing number reference only Johnson Controls Navy Systems, Llc |
| 376-96233-000 ITEM 52 | 5/1 Secondary reference Johnson Controls Navy Systems, Llc |
NSN 6685-01-507-4342 is a Thermowell, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-507-4342 has 1 manufacturer part number on file: 077-07391 (Johnson Controls Navy Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-507-9309. Verify interchangeability with system specifications before substitution.
Key specifications for 077-07391: Style Designator: WELDED TAPERED SHANK SOCKET; Special Features: (INAVY0WELL,THEMISTOR;(DRAWING)WIRING SYSTEM HFC-236FA AIR CONDITIONING 300 TON TURBO WATER COLLING SYSTEM LHD-1 THRU LHD-7 SHIPS(376-96233-000); End Item Identification: UNIT,MARINEPAK,HFC-236FA,300 TON 476-96253-002;476-96254-002; Material: COPPER ALLOY. 2 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.