The Thermostat,flow Control, cataloged under National Stock Number 6685-01-555-5116, 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 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-555-5116 |
| Primary Part Number | 1640591 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
| Status | ACTIVE |
| 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 |
|---|---|
| 1640591 PRIMARY | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| Reference | Meaning |
|---|---|
| 1555477 | 5/9 Secondary reference Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling |
NSN 6685-01-555-5116 is a Thermostat,flow Control, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-555-5116 has 1 manufacturer part number on file: 1640591 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
Key specifications for 1640591: Part Name Assigned by Controlling Agency: (INAVY) THERMOSTAT; End Item Identification: FORK LIFT MODEL NUMBER H120XM, SERIAL NUMBER SERIES L005V04675C THROUGH L005V04678C. 0 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.