The Attenuator,variable, cataloged under National Stock Number 5985-00-433-6149, 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 Meggitt (new Hampshire), Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-433-6149 |
| Primary Part Number | RFB-540-50 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Meggitt (new Hampshire), Inc |
| Status | ACTIVE |
| Adjustment Device Type and Quantity | 4 PUSHBUTTON |
| Step Position Quantity | 4 |
| Distance Between Mounting Facility Centers | 5.625 INCHES NOMINAL IN |
| Coaxial Connector Series Designation | BNC |
| Application Design | TRANSMISSION LINE |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Overall Attenuation Range in Decibels | +0.0 TO 10.0 |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 225.000 GIGAHERTZ MAXIMUM |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Attenuation Variation Method | STEPPED |
| Mounting Facility Nominal Screw Thread Diameter | 0.190 INCHES IN |
| Attenuation Per Step in Decibels | 1.0 AND 2.0 AND 3.0 AND 4.0 |
| Body Style | COAXIAL TYPE |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Terminal Type and Quantity | 1 CONNECTOR, COAXIAL, MALE AND 1 CONNECTOR, COAXIAL, FEMALE |
| Mounting Thread Quantity | 32 PER INCH |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| RFB-540-50 | Meggitt (new Hampshire), Inc (USA) |
| 378-0454-000 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| 9941 | Meggitt (new Hampshire), Inc (USA) |
NSN 5985-00-433-6149 is a Attenuator,variable, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-433-6149 has 3 cross-referenced part numbers: RFB-540-50 (Meggitt (new Hampshire), Inc), 378-0454-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 9941 (Meggitt (new Hampshire), Inc).
There are 11 known substitutes for 5985-00-433-6149: 2825-00-218-6074, 5962-00-234-1221, 5330-00-352-3066 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for RFB-540-50: Adjustment Device Type and Quantity: 4 PUSHBUTTON; Step Position Quantity: 4; Distance Between Mounting Facility Centers: 5.625 INCHES NOMINAL IN; Coaxial Connector Series Designation: BNC. 20 total characteristics are documented in the Federal Logistics Information System.