The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-00-556-2189, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ems Development Corporation Dba Ems Development Corp. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5915-00-556-2189 |
| Primary Part Number | FA4220 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Ems Development Corporation Dba Ems Development Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | HERMETICALLY SEALED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 4.000 INCHES NOMINAL IN |
| Power Line Frequency Rating Per Function in Hertz | 400.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 400.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Functional Terminal Type and Quantity | 1 CONNECTOR, RECEPTACLE INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 2 WIRE HOOK OUTPUT SECOND FUNCTION |
| Source Impedance Rating Per Function | 50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Source Impedance Rating Per Function | 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Body Width | 3.500 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.196 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON ADJACENT SURFACES |
| Body Material | METAL |
| Body Length | 3.500 INCHES NOMINAL IN |
| Operating Voltage Rating and Type Per Function | 115.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Voltage Rating and Type Per Function | 115.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 4.000 INCHES NOMINAL IN |
| Principal Circuitry Type Per Function | INDUCTANCE-CAPACITANCE 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Principal Circuitry Type Per Function | INDUCTANCE-CAPACITANCE 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Current Rating Per Function in Amps | 4.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Current Rating Per Function in Amps | 4.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Load Impedance Per Function | 50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Load Impedance Per Function | 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FA4220 | Ems Development Corporation Dba Ems Development Corp (USA) |
| A891 | Mtk Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| B101810 | 3/9 Design control — primary reference U.S. Government activity |
| FA4220 | 5/9 Secondary reference U.S. Government activity |
NSN 5915-00-556-2189 is a Filter,radio Frequency Interfere, manufactured by Ems Development Corporation Dba Ems Development Corp, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-00-556-2189 has 2 manufacturer part numbers on file: FA4220 (Ems Development Corporation Dba Ems Development Corp), A891 (Mtk Electronics Inc).
Key specifications for FA4220: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 2.125 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 4.000 INCHES NOMINAL IN. 23 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.