The Attenuator,variable, cataloged under National Stock Number 5985-00-256-6391, 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 Mallory Sonalert Products, Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-256-6391 |
| Primary Part Number | B118200-7 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Mallory Sonalert Products, Inc. |
| Status | ACTIVE |
| Bushing Length | 0.406 INCHES NOMINAL IN |
| Power Rating | 4.0 WATTS AVERAGE |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Attenuation Variation Method | CONTINUOUS |
| Body Length | 1.875 INCHES NOMINAL IN |
| Body Diameter | 1.625 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 500.0 INPUT-OUTPUT |
| Body Style | CYLINDRICAL W/SIDE TERMINALS |
| Overall Attenuation Accuracy in Decibels | -1.90 TO 1.90 |
| Schematic Diagram Designator | BRIDGED "T" |
| Mounting Facility Nominal Screw Thread Diameter | 0.375 INCHES IN |
| Mounting Facility Screw Thread Series Designator | UNEF |
| Mounting Thread Quantity | 32 PER INCH |
| Shaft Type | ROUND |
| Shaft Length | 2.000 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 38.0 |
| Adjustment Device Type and Quantity | 1 SHAFT |
| Application Design | AUDIO |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5985-00-256-6391 is a Attenuator,variable, manufactured by Mallory Sonalert Products, Inc., classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-256-6391 has 2 cross-referenced part numbers: B118200-7 (Mallory Sonalert Products, Inc.), T500L (Yosemite Investment Inc Dba North American Capacitor Co).
There is 1 known substitute for 5985-00-256-6391: 3805-00-346-7712. Verify interchangeability with system specifications before substitution.
Key specifications for B118200-7: Bushing Length: 0.406 INCHES NOMINAL IN; Power Rating: 4.0 WATTS AVERAGE; Terminal Type and Quantity: 6 TAB, SOLDER LUG; Mounting Facility Type and Quantity: 1 THREADED BUSHING. 22 total characteristics are documented in the Federal Logistics Information System.