The Heater,thaw, cataloged under National Stock Number 4540-00-234-6541, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Heater,thaw |
| FSC / FSG | 4540 — Waste Disposal Equipment (FSG 45) |
| Manufacturers | Cosmodyne, Llc Dba Cosmodyne Llc (CAGE 11243) |
| Parameter | Value |
|---|---|
| NSN | 4540-00-234-6541 |
| Primary Part Number | 3200755-1 |
| Item Name | Heater,thaw |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| LM3203305 PIECE 41 | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| 3200755-1 PRIMARY | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| TMSS1850 | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
NSN 4540-00-234-6541 is a Heater,thaw, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-00-234-6541 has 2 manufacturer part numbers on file: LM3203305 PIECE 41 (Cosmodyne, Llc Dba Cosmodyne Llc), 3200755-1 (Cosmodyne, Llc Dba Cosmodyne Llc).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-023-1983. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.