The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-054-5470, 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 Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-054-5470 |
| Primary Part Number | ZT1921-B15 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc |
| Status | ACTIVE |
| Phase | NOT RATED SINGLE VOLTAGE |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | BAND TYPE/NOZZLE ELEMENT |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Element Connection Style | WIRE LEAD |
| Heat Quantity | 1 |
| Inside Diameter | 1.312 INCHES NOMINAL IN |
| Heat Control Type | THERMOCOUPLE |
| Element Radiation Spectrum | NONINFRARED |
| Width | 1.250 INCHES NOMINAL IN |
| Element Quantity | 1 |
| 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 |
|---|---|
| ZT1921-B15 PRIMARY | Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| ZT1982-28 | 5/9 Secondary reference Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc |
| ZT1982 | D/9 Drawing number reference only Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc |
NSN 4520-01-054-5470 is a Heating Element,electrical,nonim, manufactured by Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-054-5470 has 1 manufacturer part number on file: ZT1921-B15 (Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc).
Key specifications for ZT1921-B15: Phase: NOT RATED SINGLE VOLTAGE; Terminal Quantity: 2; Voltage in Volts and Current Type: 115.0 AC SINGLE VOLTAGE; Body Style: BAND TYPE/NOZZLE ELEMENT. 12 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.