The Heating Element,electrical,immer, cataloged under National Stock Number 4520-00-904-0957, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Systems Equipment Products Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-904-0957 |
| Primary Part Number | 8389 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — No Item Name Available |
| Manufacturer | Systems Equipment Products Co |
| Status | ACTIVE |
| Body Style | CARTRIDGE, SCREW TYPE |
| Length | 21.875 INCHES NOMINAL IN |
| Thread Quantity | 14.0 PER INCH MOUNTING FACILITY |
| Element Quantity | 1 |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Thread Series Designator | NPT MOUNTING FACILITY |
| Nominal Thread Size | 0.750 INCHES MOUNTING FACILITY IN |
| Voltage in Volts and Current Type | 115.0 AC SINGLE VOLTAGE |
| Phase | NOT RATED SINGLE VOLTAGE |
| Material | ALUMINUM SHEATH |
| Terminal Length | 35.750 INCHES NOMINAL IN |
| Heat Quantity | 1 |
| Element Connection Style | WIRE LEAD |
| Element Radiation Spectrum | NONINFRARED |
| Outside Diameter | 0.738 INCHES NOMINAL IN |
| Terminal Quantity | 2 |
| Mounting Method Style | SCREW PLUG OR BUSHING TYPE MOUNTING FACILITY |
| Mounting Facility Length | 0.750 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8389 | Systems Equipment Products Co (USA) |
NSN 4520-00-904-0957 is a Heating Element,electrical,immer, manufactured by Systems Equipment Products Co, classified under FSC 4520 (No Item Name Available). Status: active.
NSN 4520-00-904-0957 has 1 cross-referenced part number: 8389 (Systems Equipment Products Co).
There are 6 known substitutes for 4520-00-904-0957: 3030-00-001-1245, 5935-00-728-5410, 2530-01-010-1413 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8389: Body Style: CARTRIDGE, SCREW TYPE; Length: 21.875 INCHES NOMINAL IN; Thread Quantity: 14.0 PER INCH MOUNTING FACILITY; Element Quantity: 1. 19 total characteristics are documented in the Federal Logistics Information System.