The Heater,water,electric, cataloged under National Stock Number 4520-01-203-7431, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Mag Aerospace Industries, Llc Div Safran Cabins. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-203-7431 |
| Primary Part Number | 811056-403 |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Mag Aerospace Industries, Llc Div Safran Cabins |
| Status | ACTIVE |
| Water Outlet Connection Quantity | 1 |
| Supplementary Features | FOR CREW LAVATORY,C5B AIRCRAFT |
| Water Inlet Connection Quantity | 1 |
| Switch Type | SINGLE THROW |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 811056-403 PRIMARY | Mag Aerospace Industries, Llc Div Safran Cabins (USA) |
| Reference | Meaning |
|---|---|
| 811056-403 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4520-01-203-7431 is a Heater,water,electric, manufactured by Mag Aerospace Industries, Llc Div Safran Cabins, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-203-7431 has 1 manufacturer part number on file: 811056-403 (Mag Aerospace Industries, Llc Div Safran Cabins).
Key specifications for 811056-403: Water Outlet Connection Quantity: 1; Supplementary Features: FOR CREW LAVATORY,C5B AIRCRAFT; Water Inlet Connection Quantity: 1; Switch Type: SINGLE THROW. 4 specifications are documented in the U.S. Government catalog.
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.