The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-01-012-6261, 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 25 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-012-6261 |
| Primary Part Number | 2131970-16 |
| 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 | 4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | HERMETICALLY SEALED |
| Body Surface Treatment | TIN |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 3.250 INCHES NOMINAL IN |
| Functional Terminal Type and Quantity | 2 WIRE LEAD OUTPUT SECOND FUNCTION |
| Functional Terminal Type and Quantity | 1 THREADED STUD GROUND THIRD FUNCTION |
| Functional Terminal Type and Quantity | 2 WIRE LEAD INPUT FIRST 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 | 2.000 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.187 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Body Material | METAL |
| Body Length | 2.500 INCHES NOMINAL IN |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 1.000 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 | 1.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Current Rating Per Function in Amps | 1.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Load Impedance Per Function | 50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Load Impedance Per Function | 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Average Life Rating in Hours | 10000.0 |
| 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 |
|---|---|
| 2131970-16 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| RF04858-16 | Ems Development Corporation Dba Ems Development Corp (USA) |
| A3011 | Mtk Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| CSK-3116 | 5/9 Secondary reference Erie Specialty Products Inc |
| 82-352-001 | 5/9 Secondary reference Spectrum Control Inc |
| CSK-3116 | 5/9 Secondary reference Murata Erie North America Inc Divof Murata Erie |
| RF4858-16 | 5/9 Secondary reference Ems Development Corporation Dba Ems Development Corp |
| F20596-16 | 5/9 Secondary reference U.S. Government activity |
| 5004-6460 | 5/9 Secondary reference Spectrum Control, Inc. Div Api Technologies - Eis/wesson |
| 2131970-16 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5915-01-012-6261 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 5915-01-012-6261 has 3 manufacturer part numbers on file: 2131970-16 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), RF04858-16 (Ems Development Corporation Dba Ems Development Corp), A3011 (Mtk Electronics Inc).
Key specifications for 2131970-16: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 1.500 INCHES NOMINAL IN; Inclosure Type: HERMETICALLY SEALED; Body Surface Treatment: TIN. 25 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.