The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-01-233-3159, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Captor Corporation. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-233-3159 |
| Primary Part Number | A-3178B |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | The Captor Corporation |
| Status | ACTIVE |
| Maximum Dielectric Withstanding DC Voltage | 230.0 VOLTS AT SEA LEVEL |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) ALL FUNCTIONS |
| Inclosure Type | ENCASED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 3.875 INCHES NOMINAL IN |
| Power Line Frequency Rating Per Function in Hertz | 400.0 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 400.0 3RD RADIO INTERFERENCE THIRD FUNCTION |
| 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, PLUG INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 4 TAB, SOLDER LUG OUTPUT SECOND FUNCTION |
| 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 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Source Impedance Rating Per Function | 50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Vibration Resistance Range in Hertz | +10.0 TO 500.0 |
| Body Width | 3.500 INCHES NOMINAL IN |
| Body Height | 1.620 INCHES NOMINAL IN |
| Maximum Voltage Drop Per Function | 1.15 VOLTS AC 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Maximum Voltage Drop Per Function | 1.15 VOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Maximum Voltage Drop Per Function | 1.15 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Size | 0.138 INCHES IN |
| Body Material | METAL |
| Body Length | 4.500 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 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Operating Voltage Rating and Type Per Function | 115.0 VOLTS AC 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Operating Voltage Rating and Type Per Function | 115.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A-3178B PRIMARY | The Captor Corporation (USA) |
| Reference | Meaning |
|---|---|
| A-3178A | 5/9 Secondary reference The Captor Corporation |
NSN 5915-01-233-3159 is a Filter,radio Frequency Interfere, manufactured by The Captor Corporation, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-233-3159 has 1 manufacturer part number on file: A-3178B (The Captor Corporation).
Key specifications for A-3178B: Maximum Dielectric Withstanding DC Voltage: 230.0 VOLTS AT SEA LEVEL; Mounting Facility Type and Quantity: 4 THREADED HOLE(S) ALL FUNCTIONS; Overall Height: 2.935 INCHES NOMINAL IN; Inclosure Type: ENCASED. 29 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.
NSN 5915-01-233-3159 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.