The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-01-374-4561, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Custom Suppression Inc Dba Csi. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-374-4561 |
| Primary Part Number | 0300-001B |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Custom Suppression Inc Dba Csi |
| Status | ACTIVE |
| Maximum Dielectric Withstanding DC Voltage | 250.0 VOLTS AT SEA LEVEL |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | ENCASED |
| Body Surface Treatment | TIN |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 0.850 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Functional Terminal Type and Quantity | 24 FRICTION W/GROUNDING STRAP AND PIN INPUT-OUTPUT LOCATION NOT OTHERWISE SPECIFIED |
| Body Outside Diameter | 1.125 INCHES NOMINAL IN |
| Source Impedance Rating Per Function | 50.0 OHMS 5TH RADIO INTERFERENCE FIFTH 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 |
| Source Impedance Rating Per Function | 50.0 OHMS 6TH RADIO INTERFERENCE SIXTH FUNCTION |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Size | 0.112 INCHES IN |
| Body Material | METAL |
| Full Load Insertion Loss Frequencies in Megahertz | 1.0 AND 10.0 AND 100.0 AND 1000.0 |
| Full Load Minimum Insertion Loss at Specified Frequency in Decibels | 7.0 AND 35.0 AND 72.0 |
| 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 |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 5TH RADIO INTERFERENCE FIFTH FUNCTION |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 6TH RADIO INTERFERENCE SIXTH FUNCTION |
| Operating Voltage Rating and Type Per Function | 100.0 VOLTS DC 4TH RADIO INTERFERENCE FOURTH FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 0.850 INCHES NOMINAL IN |
| Operating Current Rating Per Function in Amps | 5.0 BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| 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 |
|---|---|
| 0300-001B | Custom Suppression Inc Dba Csi (USA) |
| Reference | Meaning |
|---|---|
| 5915-0004-001 | 5/9 Secondary reference U.S. Government activity |
| 5915-0004-01 | 3/9 Design control — primary reference Lockheed Martin Corp Lockheed Martin Astronautics |
NSN 5915-01-374-4561 is a Filter,radio Frequency Interfere, manufactured by Custom Suppression Inc Dba Csi, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-374-4561 has 1 manufacturer part number on file: 0300-001B (Custom Suppression Inc Dba Csi).
Key specifications for 0300-001B: Maximum Dielectric Withstanding DC Voltage: 250.0 VOLTS AT SEA LEVEL; Mounting Facility Type and Quantity: 4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED; Inclosure Type: ENCASED; Body Surface Treatment: TIN. 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.
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.