The Thermostat,flow Control, cataloged under National Stock Number 6685-01-532-4150, 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 Holyhead Marine Services Ltd. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-532-4150 |
| Primary Part Number | ORC-26-350 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Holyhead Marine Services Ltd |
| 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 |
|---|---|
| ORC-26-350 | Holyhead Marine Services Ltd (GBR) |
| 2173621/1 | Steyr Motors North America, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2173621/1 | 5/9 Secondary reference Steyr Motors Gmbh |
| 10040826 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2173621/1 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
| 2173621/1 | 3/9 Design control — primary reference Steyr Motors Gmbh |
NSN 6685-01-532-4150 is a Thermostat,flow Control, manufactured by Holyhead Marine Services Ltd, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-532-4150 has 2 manufacturer part numbers on file: ORC-26-350 (Holyhead Marine Services Ltd), 2173621/1 (Steyr Motors North America, Inc.).
Key specifications for ORC-26-350: End Item Identification: ENGINE, DIESEL MDL M0256K43. 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.