The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-313-0941, 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 Tomlinson Co Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-313-0941 |
| Primary Part Number | 78770F706A8731 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Tomlinson Co Inc |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 230.0 AC SINGLE VOLTAGE |
| Element Connection Style | TERMINAL SCREW |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Thread Series Designator | UNF STUD |
| Thread Quantity | 32.0 PER INCH STUD |
| 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 |
|---|---|
| 78770F706A8731 | Tomlinson Co Inc (USA) |
| F706A8731 | Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div (USA) |
| Reference | Meaning |
|---|---|
| E481-1 | 5/9 Secondary reference Eastern Technologies Ltd |
| 20M1E-2 | 3/9 Design control — primary reference Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div |
NSN 4520-01-313-0941 is a Heating Element,electrical,nonim, manufactured by Tomlinson Co Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-313-0941 has 2 manufacturer part numbers on file: 78770F706A8731 (Tomlinson Co Inc), F706A8731 (Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div).
Key specifications for 78770F706A8731: Terminal Quantity: 2; Voltage in Volts and Current Type: 230.0 AC SINGLE VOLTAGE; Element Connection Style: TERMINAL SCREW; Nominal Thread Size: 0.190 INCHES STUD IN. 9 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.