The Heating Unit,infrared, cataloged under National Stock Number 3439-01-589-7753, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Pace, Incorporated Dba Pace Worldwide Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3439-01-589-7753 |
| Primary Part Number | ST 400 |
| Item Name | Heating Unit,infrared |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | Pace, Incorporated Dba Pace Worldwide Inc. |
| Status | ACTIVE |
| Wattage Rating | 425.000 WATTS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 3439-01-589-7753 is a Heating Unit,infrared, manufactured by Pace, Incorporated Dba Pace Worldwide Inc., classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-589-7753 has 2 manufacturer part numbers on file: 8007-0436 (Pace, Incorporated Dba Pace Worldwide Inc.), ST 400 (Pace, Incorporated Dba Pace Worldwide Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6675-01-602-7848. Verify interchangeability with system specifications before substitution.
Key specifications for ST 400: Overall Height: 105.0 MILLIMETERS NOMINAL MM; Overall Length: 318.0 MILLIMETERS NOMINAL MM; Overall Width: 178.0 MILLIMETERS NOMINAL MM; Wattage Rating: 425.000 WATTS. 1 specification is 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.