The Attenuator,variable, cataloged under National Stock Number 5985-00-615-7697, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-615-7697 |
| Primary Part Number | 378-0423-00 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Impedance Rating in Ohms | 600.0 INPUT-OUTPUT |
| Body Diameter | 2.344 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Frequency Range | 0.000 KILOHERTZ MINIMUM AND 1.000 KILOHERTZ MAXIMUM |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL W/REAR TERMINALS |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Overall Diameter | 2.344 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 10.0 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Accuracy in Decibels | -0.05 TO 0.05 |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Distance Between Mounting Facility Centers | 1.500 INCHES NOMINAL IN |
| Schematic Diagram Designator | "T" |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Length | 0.938 INCHES NOMINAL IN |
| Body Length | 2.062 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.156 INCHES IN |
| Operating Temp Range | -65.0 TO 71.0 CELSIUS DEGC |
| Application Design | AUDIO |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Power Rating | 500.0 MILLIWATTS AVERAGE |
| Step Position Quantity | 10 |
| 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 |
|---|---|
| 378-0423-00 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 6576 | 5/1 Secondary reference Meggitt (new Hampshire), Inc |
NSN 5985-00-615-7697 is a Attenuator,variable, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-615-7697 has 1 manufacturer part number on file: 378-0423-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-198-1594, 6515-01-561-2678, 6515-01-646-2522. Verify interchangeability with system specifications before substitution.
Key specifications for 378-0423-00: Shaft Type: ROUND; Impedance Rating in Ohms: 600.0 INPUT-OUTPUT; Body Diameter: 2.344 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 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.