The Attenuator,variable, cataloged under National Stock Number 5985-00-409-9155, 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 Clarostat Sensors and Controls. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-409-9155 |
| Primary Part Number | JJP |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Clarostat Sensors and Controls |
| Status | ACTIVE |
| Shaft Type | ROUND, FLATTED |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.8 |
| Bushing Length | 0.250 INCHES NOMINAL IN |
| Body Diameter | 1.156 INCHES MAXIMUM IN |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Body Style | CYLINDRICAL W/SIDE TERMINALS |
| Adjustment Device Type and Quantity | 1 SHAFT |
| First Flat Length | 0.280 INCHES NOMINAL IN |
| Schematic Diagram Designator | BRIDGED "T" |
| Shaft Length | 0.625 INCHES NOMINAL IN |
| Body Length | 1.297 INCHES MAXIMUM IN |
| Operating Temp Range | -55.0 TO 120.0 CELSIUS DEGC |
| Test Data Document | 80249-730490-3 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Application Design | AUDIO |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Power Rating | 5.0 WATTS AVERAGE |
| Flat Height | 0.156 INCHES NOMINAL IN |
| 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 |
|---|---|
| JJP PRIMARY | Clarostat Sensors and Controls (USA) |
| Reference | Meaning |
|---|---|
| JJP | 5/9 Secondary reference Rockwell Automation, Inc. Dba Rockwell Automation |
| 730490-3 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-409-9155 is a Attenuator,variable, manufactured by Clarostat Sensors and Controls, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-409-9155 has 1 manufacturer part number on file: JJP (Clarostat Sensors and Controls).
1 possible match (shared part number, not a government interchangeability claim): 5220-00-442-2079. Verify interchangeability with system specifications before substitution.
Key specifications for JJP: Shaft Type: ROUND, FLATTED; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.8; Bushing Length: 0.250 INCHES NOMINAL IN; Body Diameter: 1.156 INCHES MAXIMUM IN. 17 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.