The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-01-249-9102, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Tricor Systems Inc. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5915-01-249-9102 |
| Primary Part Number | 121-443 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Tricor Systems Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 7 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | ENCASED |
| 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 | 2 TAB, SOLDER LUG INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 2 THREADED STUD 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 |
| Vibration Resistance Range in Hertz | +10.0 TO 2000.0 |
| Body Width | 2.438 INCHES NOMINAL IN |
| Body Height | 1.875 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Size | 0.164 INCHES IN |
| Body Material | METAL |
| Body Length | 2.875 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 | 1.190 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 | 2.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Current Rating Per Function in Amps | 2.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Operating Temp Range | -20.0 TO 55.0 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 |
| 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 |
|---|---|
| 121-443 PRIMARY | Tricor Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| RNF-222 | 5/9 Secondary reference Rtron Corp |
NSN 5915-01-249-9102 is a Filter,radio Frequency Interfere, manufactured by Tricor Systems Inc, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-249-9102 has 1 manufacturer part number on file: 121-443 (Tricor Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 6545-01-658-2285. Verify interchangeability with system specifications before substitution.
Key specifications for 121-443: Mounting Facility Type and Quantity: 7 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED; Inclosure Type: ENCASED; 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. 26 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.