| | MELLEN MICROTHERM BOX 1550C INTEGRATED BOX FURNACE AND CONTROLLER (PLUS SHIPPING) | THE MELLEN CO INC | $27,705 | ENERGY, DEPARTMENT OF | ENERGY, DEPARTMENT OF | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | May 8, 2025 | May 8, 2025 | Sep 30, 2025 |
| | FURNACE / CONTROLLER | THE MELLEN CO INC | $21,816 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Jan 5, 2024 | Jan 5, 2024 | Apr 1, 2024 |
| | INTEGRATED BOX FURNACE & CONTROLLER | THE MELLEN CO INC | $51,995 | DEPT OF THE ARMY | DEPT OF THE ARMY | — | 511210 | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Sep 22, 2022 | Sep 22, 2022 | Jul 1, 2023 |
| | BRIDGEMAN CRYSTAL GROWTH SYSTEM | THE MELLEN CO INC | $47,195 | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Sep 7, 2021 | Sep 7, 2021 | Jan 10, 2022 |
| | ONE BRIDGMAN CRYSTAL GROWTH SYSTEM | THE MELLEN CO INC | $40,845 | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Apr 21, 2020 | Apr 21, 2020 | Aug 24, 2020 |
| | MULTIZONE FURNACE
PR# 56-9723-17 | THE MELLEN CO INC | $12,490 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Nov 14, 2017 | Nov 14, 2017 | Feb 8, 2018 |
| | PURCHASE OF SOLID TUBULAR FURNACE | THE MELLEN CO INC | $6,360 | ENERGY, DEPARTMENT OF | ENERGY, DEPARTMENT OF | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Aug 4, 2017 | Aug 3, 2017 | Feb 26, 2018 |
| | MELLEN SERIES SC09R-900 C SPLIT-HINGED ROUND TUBULAR FURNACE | THE MELLEN CO INC | $5,699 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Feb 5, 2016 | Feb 5, 2016 | Mar 11, 2016 |
| | HIGHT TEMP FATIGUE TEST FRAME FURNACE | THE MELLEN CO INC | $18,250 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Apr 1, 2015 | Apr 1, 2015 | May 30, 2015 |
| | MUFFLE FURNACE | THE MELLEN CO INC | $7,465 | CENTERS FOR DISEASE CONTROL AND PREVENTION | CENTERS FOR DISEASE CONTROL AND PREVENTION | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Jul 18, 2014 | Jul 18, 2014 | Sep 18, 2014 |
| | TUBE FURNACE | THE MELLEN CO INC | $13,400 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 339999All Other Miscellaneous Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Sep 24, 2013 | Sep 24, 2013 | Dec 31, 2013 |
| | FURNACE | THE MELLEN CO INC | $0 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 236210Industrial Building Construction | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Aug 22, 2013 | Aug 22, 2013 | Oct 21, 2013 |
| | PURCHASE ORDER FOR TWO CUSTOM HIGH TEMP MECH. TESTING FURNACES. END USER: RONALD PHILLIPS ANTICIPATED DELIVERY DATE: 03/18/2013 | THE MELLEN CO INC | $20,995 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | 4430INDUSTRIAL FURNACES, KILNS, LEHRS, AND OVENS | Jan 31, 2013 | Jan 31, 2013 | Mar 18, 2013 |
| | FURNACE AND ACCESSORIES | THE MELLEN CO INC | $5,265 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 333994Industrial Process Furnace and Oven Manufacturing | 5961SEMICONDUCTOR DEVICES AND ASSOCIATED HARDWARE | Aug 10, 2012 | Aug 10, 2012 | Sep 21, 2012 |
| | FURNACE | THE MELLEN CO INC | $18,250 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Jun 7, 2012 | Jun 7, 2012 | Aug 6, 2012 |
| | REBUILD OF FURNACES | THE MELLEN CO INC | $9,711 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | J099 | Mar 22, 2012 | Mar 22, 2012 | May 31, 2012 |
| | FURNACE | THE MELLEN CO INC | $13,510 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333414Heating Equipment (except Warm Air Furnaces) Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Mar 8, 2012 | Mar 8, 2012 | May 3, 2012 |
| | RETORT CHAMBER | THE MELLEN CO INC | $3,495 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 334413Semiconductor and Related Device Manufacturing | 5961SEMICONDUCTOR DEVICES AND ASSOCIATED HARDWARE | Jul 27, 2011 | Jul 27, 2011 | Sep 7, 2011 |
| | CUSTOM FURNACE PARTS KIT | THE MELLEN CO INC | $5,186 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333414Heating Equipment (except Warm Air Furnaces) Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Jul 27, 2011 | Jul 27, 2011 | Aug 26, 2011 |
| | MELLEN TUBE FURNACE | THE MELLEN CO INC | $16,995 | DEPT OF THE AIR FORCE | DEPT OF THE AIR FORCE | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Dec 21, 2010 | Dec 21, 2010 | Feb 28, 2011 |
| | SHORT TUBE FURNACE | THE MELLEN CO INC | $0 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333414Heating Equipment (except Warm Air Furnaces) Manufacturing | 6650OPTICAL INSTRUMENTS, TEST EQUIPMENT, COMPONENTS AND ACCESSORIES | Aug 24, 2010 | Aug 24, 2010 | Oct 29, 2010 |
| | MELLEN FURNANCE | THE MELLEN CO INC | $0 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | 333994Industrial Process Furnace and Oven Manufacturing | 4470NUCLEAR REACTORS | Jun 25, 2010 | Jun 25, 2010 | Aug 27, 2010 |
| | MTAU SERIES GOLD MEL | THE MELLEN CO INC | $3,675 | DEPT OF THE NAVY | DEPT OF THE NAVY | — | 333314 | 5961SEMICONDUCTOR DEVICES AND ASSOCIATED HARDWARE | May 17, 2010 | May 17, 2010 | Jun 7, 2010 |
| | HIGH TEMPERATURE FURNACE | THE MELLEN CO INC | $17,845 | NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | — | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Sep 3, 2009 | Sep 3, 2009 | Oct 30, 2009 |
| | MELLEN MODEL TD18-1.5X1.25-1Z | THE MELLEN CO INC | $40,052 | DEPT OF THE AIR FORCE | DEPT OF THE AIR FORCE | — | 333994Industrial Process Furnace and Oven Manufacturing | 6640LABORATORY EQUIPMENT AND SUPPLIES | Aug 20, 2009 | Aug 20, 2009 | Nov 13, 2009 |