The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-079-7778, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-079-7778 |
| Primary Part Number | BSK42673 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Terminal Quantity | 6 |
| Length | 13.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 220.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, DOUBLE COIL, DOUBLE TERMINALS |
| Hole or Slot Quantity | 8 |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 9000.0 SINGLE VOLTAGE |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Mounting Facility Length | 9.000 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Effective Heating Length | 7.750 INCHES NOMINAL IN |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Thread Series Designator | UNF STUD |
| Mounting Facility Width | 4.000 INCHES NOMINAL IN |
| Thread Quantity | 32.0 PER INCH STUD |
| Hole Diameter | 0.875 INCHES NOMINAL IN |
| Element Quantity | 3 |
| 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 |
|---|---|
| BSK42673 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
NSN 4520-00-079-7778 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-079-7778 has 1 manufacturer part number on file: BSK42673 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for BSK42673: Terminal Quantity: 6; Length: 13.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 220.0 AC SINGLE VOLTAGE; Body Style: TUBULAR, DOUBLE COIL, DOUBLE TERMINALS. 20 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.