The Element Asm, cataloged under National Stock Number 4520-01-441-7578, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Element Asm |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-441-7578 |
| Item Name | Element Asm |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| E18043E-C0NS-00 | 3/2 Design control — primary reference U.S. Government activity |
| I100IL33-180EP-NC43 | 3/9 Design control — primary reference U.S. Government activity |
| A-4136-0 IT 4 | 5/9 Secondary reference U.S. Government activity |
NSN 4520-01-441-7578 is a Element Asm, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
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.