The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-00-975-9917, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5915-00-975-9917 |
| Primary Part Number | 905121-1 |
| Item Name | Filter,radio Frequency Interfere |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 12 TERMINAL FIRST FUNCTION |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) SECOND FUNCTION |
| Unpackaged Unit Weight | 5.000 OUNCES NOMINAL OZ |
| Inclosure Type | HERMETICALLY SEALED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 1.750 INCHES NOMINAL IN |
| Output Terminal Identification | AAAS-60T-L4X |
| Power Line Frequency Rating Per Function in Hertz | 420.0 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 420.0 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Power Line Frequency Rating Per Function in Hertz | 420.0 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Functional Terminal Type and Quantity | 3 TAB, SOLDER LUG INPUT FIRST FUNCTION |
| Functional Terminal Type and Quantity | 3 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 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 | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM IN |
| Output Terminal Manufacturer Code | 20093 |
| Maximum Voltage Drop Per Function | 400.0 MILLIVOLTS AC 2ND RADIO INTERFERENCE SECOND FUNCTION |
| Maximum Voltage Drop Per Function | 400.0 MILLIVOLTS AC 3RD RADIO INTERFERENCE THIRD FUNCTION |
| Unthreaded Mounting Hole Diameter | 0.141 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON ADJACENT SURFACES |
| Body Material | METAL |
| Body Length | 1.510 INCHES NOMINAL IN |
| Full Load Insertion Loss Frequencies in Megahertz | 0.1 AND 0.5 AND 1.0 AND 5.0 AND 10.0 AND 20.0 |
| Full Load Minimum Insertion Loss at Specified Frequency in Decibels | 20.0 AND 50.0 AND 60.0 AND 80.0 AND 70.0 |
| Operating Voltage Rating and Type Per Function | 28.0 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION |
| Operating Voltage Rating and Type Per Function | 28.0 VOLTS AC 2ND RADIO INTERFERENCE SECOND 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 |
|---|---|
| 905121-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| GF-6904 | 5/9 Secondary reference Genisco Filter Corp |
| GF-6904 | 5/9 Secondary reference Spectrum Control, Inc. Div Api Technologies - Eis/wesson |
NSN 5915-00-975-9917 is a Filter,radio Frequency Interfere, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-00-975-9917 has 1 manufacturer part number on file: 905121-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-648-4361. Verify interchangeability with system specifications before substitution.
Key specifications for 905121-1: Mounting Facility Type and Quantity: 12 TERMINAL FIRST FUNCTION; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) SECOND FUNCTION; Overall Height: 0.590 INCHES MAXIMUM IN; Unpackaged Unit Weight: 5.000 OUNCES NOMINAL OZ. 27 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.