The Heater,fluid,industrial, cataloged under National Stock Number 4420-00-287-3646, is classified within Federal Supply Class 4420 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Sellers Engineering Co. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-00-287-3646 |
| Primary Part Number | A243 |
| Item Name | Heater,fluid,industrial |
| FSC / FSG | 4420 / 44 — No Item Name Available |
| Manufacturer | Sellers Engineering Co |
| Status | ACTIVE |
| Material | STEEL SHELL |
| Heat Transfer Method | DIRECT |
| Material | COPPER TUBES |
| Tube Attachment Method | SOLDERED BOTH ENDS |
| Tube Quantity | 24 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A243 | Sellers Engineering Co (USA) |
NSN 4420-00-287-3646 is a Heater,fluid,industrial, manufactured by Sellers Engineering Co, classified under FSC 4420 (No Item Name Available). Status: active.
NSN 4420-00-287-3646 has 1 cross-referenced part number: A243 (Sellers Engineering Co).
There are 7 known substitutes for 4420-00-287-3646: 4320-00-369-0091, 5950-00-466-1589, 5999-00-475-1114 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for A243: Material: STEEL SHELL; Heat Transfer Method: DIRECT; Material: COPPER TUBES; Tube Attachment Method: SOLDERED BOTH ENDS. 5 total characteristics are documented in the Federal Logistics Information System.