The Attenuator,variable, cataloged under National Stock Number 5985-00-250-4020, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Shallco, Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-250-4020 |
| Primary Part Number | 1559 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Shallco, Inc |
| Status | ACTIVE |
| Attenuation Variation Method | STEPPED |
| Impedance Rating in Ohms | 15.0 INPUT-OUTPUT |
| Mounting Facility Nominal Screw Thread Diameter | 0.375 INCHES IN |
| Step Position Quantity | 10 |
| Frequency Range | 0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM |
| Mounting Thread Quantity | 32 PER INCH |
| Overall Diameter | 2.250 INCHES NOMINAL IN |
| Bushing Length | 0.500 INCHES NOMINAL IN |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Application Design | AUDIO |
| Mounting Facility Screw Thread Series Designator | UNEF |
| Attenuation Per Step in Decibels | 3.0 |
| Overall Attenuation Range in Decibels | +0.0 TO 30.0 |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Schematic Diagram Designator | "T" |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5985-00-250-4020 is a Attenuator,variable, manufactured by Shallco, Inc, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-250-4020 has 2 cross-referenced part numbers: 1559 (Shallco, Inc), A1752-8B (Shallco, Inc).
There are 10 known substitutes for 5985-00-250-4020: 5998-00-020-0254, 5120-00-277-9078, 5310-00-297-0424 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1559: Attenuation Variation Method: STEPPED; Impedance Rating in Ohms: 15.0 INPUT-OUTPUT; Mounting Facility Nominal Screw Thread Diameter: 0.375 INCHES IN; Step Position Quantity: 10. 15 total characteristics are documented in the Federal Logistics Information System.