The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-331-7337, 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 Hansome Energy Systems Inc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-331-7337 |
| Primary Part Number | HAN-3147G1 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Hansome Energy Systems Inc |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Body Style | STRIP, FINNED |
| Width | 1.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| D-505-144PIECE179 | Hansome Energy Systems Inc (USA) |
| HAN-3147G1 PRIMARY | Hansome Energy Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| D-505-144 | D/9 Drawing number reference only Hansome Energy Systems Inc |
NSN 4520-01-331-7337 is a Heating Element,electrical,nonim, manufactured by Hansome Energy Systems Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-331-7337 has 2 manufacturer part numbers on file: D-505-144PIECE179 (Hansome Energy Systems Inc), HAN-3147G1 (Hansome Energy Systems Inc).
3 possible matches (shared part number, not a government interchangeability claim): 2920-01-332-5820, 4320-01-335-3500, 4320-01-335-3501. Verify interchangeability with system specifications before substitution.
Key specifications for HAN-3147G1: Phase: SINGLE SINGLE VOLTAGE; Voltage in Volts and Current Type: 440.0 AC SINGLE VOLTAGE; Body Style: STRIP, FINNED; Width: 1.500 INCHES NOMINAL IN. 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.