The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-183-0549, 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 Westinghouse Electric Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-183-0549 |
| Primary Part Number | 631B983H01 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Terminal Quantity | 22 |
| Length | 16.125 INCHES NOMINAL16.125 INCHES NOMINAL IN |
| Body Style | TUBULAR, SINGLE COIL DOUBLE TERMINALSTUBULAR, SINGLE COIL DOUBLE TERMINALS |
| Terminal Length | 0.4375 INCHES NOMINAL0.4375 INCHES NOMINAL IN |
| Element Connection Style | HERMETICALLY SEALED STUDHERMETICALLY SEALED STUD |
| Nominal Thread Size | 0.190 INCHES STUD0.190 INCHES STUD IN |
| Thread Series Designator | NPT STUDNPT STUD |
| Thread Quantity | 32 PER INCH STUD32 PER INCH STUD |
| Element Quantity | 11 |
| 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 |
|---|---|
| 631B983H01 PRIMARY | Westinghouse Electric Corp (USA) |
| 619J142-72 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 631B98H01 | 5/9 Secondary reference Westinghouse Electric Corp |
NSN 4520-01-183-0549 is a Heating Element,electrical,nonim, manufactured by Westinghouse Electric Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-183-0549 has 2 manufacturer part numbers on file: 631B983H01 (Westinghouse Electric Corp), 619J142-72 (Westinghouse Electric Corp).
Key specifications for 631B983H01: Terminal Quantity: 22; Length: 16.125 INCHES NOMINAL16.125 INCHES NOMINAL IN; Body Style: TUBULAR, SINGLE COIL DOUBLE TERMINALSTUBULAR, SINGLE COIL DOUBLE TERMINALS; Terminal Length: 0.4375 INCHES NOMINAL0.4375 INCHES NOMINAL 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.