The Coil,electrical, cataloged under National Stock Number 5950-01-331-3920, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5950-01-331-3920 |
| Primary Part Number | 3C539 |
| Item Name | Coil,electrical |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 500.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 85.0 CELSIUS DEGC |
| Winding Operating Current | 3.5 AMPERES DC NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Rating Method | ELECTRICAL SINGLE COMPONENT SINGLE WINDING |
| DC Resistance Rating in Ohms | 0.120 SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Core Construction | POWDERED SINGLE COMPONENT |
| Winding Quantity | 1 SINGLE COMPONENT |
| Frequency Rating | 30.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Operating Voltage | 18.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING |
| Terminal Type and Quantity | 2 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Hazardous Locations/environmental Protection | MOISTURE RESISTANT AND VIBRATION RESISTANT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3C539 | Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA) |
| WE-3620 | Magnetika Inc (USA) |
| Reference | Meaning |
|---|---|
| 841389-0001 | 3/9 Design control — primary reference Litton Systems Inc. Div Navigation Systems Division |
| WE-3620 | 5/9 Secondary reference Wems Electronics Transformer Group |
NSN 5950-01-331-3920 is a Coil,electrical, manufactured by Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-331-3920 has 2 manufacturer part numbers on file: 3C539 (Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc), WE-3620 (Magnetika Inc).
Key specifications for 3C539: Overall Height: 1.150 INCHES MAXIMUM IN; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 19 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.