The Heating Element,electrical,immer, cataloged under National Stock Number 4520-00-288-8300, 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 Grand Silver Co Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-288-8300 |
| Primary Part Number | A7793 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Grand Silver Co Inc |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Length | 7.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Body Style | SCREW TYPE |
| Maximum Wattage Rating in Watts | 1500.0 SINGLE VOLTAGE |
| Element Connection Style | STUD TYPE |
| Terminal Box Environmental Protection | STANDARD |
| Mounting Method Style | PIPE THREAD TYPE MOUNTING FACILITY |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | COPPER SHEATH |
| Element Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4520-00-288-8300 is a Heating Element,electrical,immer, manufactured by Grand Silver Co Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-288-8300 has 4 manufacturer part numbers on file: A7993 (Grand Silver Co Inc), A7793 (Grand Silver Co Inc), A7993 (Gruenberg Oven Company), 112843-19 (Grand Silver Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-854-8973. Verify interchangeability with system specifications before substitution.
Key specifications for A7793: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Length: 7.500 INCHES NOMINAL IN; Voltage in Volts and Current Type: 115.0 AC SINGLE VOLTAGE. 13 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.