The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-01-156-7824, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Mtk Electronics Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5915-01-156-7824 |
| Primary Part Number | M1665 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Mtk Electronics Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 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 | 9.000 INCHES NOMINAL IN |
| Power Line Frequency Rating Per Function in Hertz | 60.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 60.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Functional Terminal Type and Quantity | 2 THREADED STUD OUTPUT SECOND FUNCTION |
| Functional Terminal Type and Quantity | 2 THREADED STUD INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 2 THREADED STUD GROUND THIRD 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 | 4.750 INCHES MAXIMUM IN |
| Body Height | 3.000 INCHES MAXIMUM IN |
| Unthreaded Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Body Material | METAL |
| Body Length | 8.000 INCHES MAXIMUM IN |
| Operating Voltage Rating and Type Per Function | 230.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Voltage Rating and Type Per Function | 230.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 3.250 INCHES NOMINAL IN |
| Operating Current Rating Per Function in Amps | 35.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Current Rating Per Function in Amps | 35.0 2ND RADIO INTERFERENCE SECOND 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 | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M1665 | Mtk Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 81646 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5915-01-156-7824 is a Filter,radio Frequency Interfere, manufactured by Mtk Electronics Inc, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-156-7824 has 1 manufacturer part number on file: M1665 (Mtk Electronics Inc).
1 possible match (shared part number, not a government interchangeability claim): 5315-01-394-2755. Verify interchangeability with system specifications before substitution.
Key specifications for M1665: Mounting Facility Type and Quantity: 6 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: 9.000 INCHES NOMINAL IN. 24 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.