The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-00-593-5544, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-00-593-5544 |
| Primary Part Number | 2131970-2 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | HERMETICALLY SEALED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 6.500 INCHES NOMINAL IN |
| Power Line Frequency Rating Per Function in Hertz | 440.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 440.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 440.0 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Functional Terminal Type and Quantity | 4 WIRE LEAD INPUT AND 4 WIRE LEAD OUTPUT AND 1 THREADED STUD GROUND LOCATION NOT OTHERWISE SPECIFIED |
| Source Impedance Rating Per Function | 50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Source Impedance Rating Per Function | 50.0 OHMS 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Source Impedance Rating Per Function | 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Body Width | 6.000 INCHES NOMINAL IN |
| Maximum Voltage Drop Per Function | 2.4 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Maximum Voltage Drop Per Function | 2.4 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Maximum Voltage Drop Per Function | 2.4 VOLTS AC 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Unthreaded Mounting Hole Diameter | 0.196 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Body Material | METAL |
| Body Length | 6.000 INCHES NOMINAL IN |
| Operating Voltage Rating and Type Per Function | 130.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Voltage Rating and Type Per Function | 130.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Voltage Rating and Type Per Function | 130.0 VOLTS AC 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 5.000 INCHES NOMINAL IN |
| Principal Circuitry Type Per Function | INDUCTANCE-CAPACITANCE 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Principal Circuitry Type Per Function | INDUCTANCE-CAPACITANCE 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| 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 | 5.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Current Rating Per Function in Amps | 5.0 3RD RADIO INTERFERENCE THIRD FUNCTION |
| 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 |
|---|---|
| A3001 | Mtk Electronics Inc (USA) |
| 2131970-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| RF04858-2 | Ems Development Corporation Dba Ems Development Corp (USA) |
| Reference | Meaning |
|---|---|
| CSK3702 | 5/9 Secondary reference Murata Erie North America Inc Divof Murata Erie |
| 82-343-001 | 5/9 Secondary reference Spectrum Control Inc |
| CSK3702 | 5/9 Secondary reference Erie Specialty Products Inc |
| RF4858-2 | 5/9 Secondary reference Ems Development Corporation Dba Ems Development Corp |
| 5004-4531 | 5/9 Secondary reference Spectrum Control, Inc. Div Api Technologies - Eis/wesson |
| F20596-2 | 5/9 Secondary reference U.S. Government activity |
| 2131970-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5915-00-593-5544 is a Filter,radio Frequency Interfere, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-00-593-5544 has 3 manufacturer part numbers on file: A3001 (Mtk Electronics Inc), 2131970-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), RF04858-2 (Ems Development Corporation Dba Ems Development Corp).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-619-7651. Verify interchangeability with system specifications before substitution.
Key specifications for 2131970-2: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 2.500 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 6.500 INCHES NOMINAL IN. 28 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.