The Attenuator,variable, cataloged under National Stock Number 5985-01-086-3785, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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 | 5985-01-086-3785 |
| Primary Part Number | 174AS581 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.750 INCHES NOMINAL IN |
| Coaxial Connector Series Designation | WPM |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 0.7 |
| Overall Attenuation Range in Decibels | +0.0 TO 69.0 |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Body Style | COAXIAL TYPE |
| Mounting Thread Quantity | 32 PER INCH |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Voltage Standing Wave Ratio | 1.30 AND 1.40 |
| Frequency Range | 0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM |
| Step Position Quantity | 69 |
| Mounting Facility Nominal Screw Thread Diameter | 0.138 INCHES IN |
| Power Rating | 1.0 WATTS AVERAGE AND 100.0 WATTS PEAK |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Attenuation Per Step in Decibels | 1.0 |
| Overall Attenuation Accuracy in Decibels | +0.00 TO 0.20 |
| Application Design | TRANSMISSION LINE |
| Attenuation Variation Method | STEPPED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.750 INCHES NOMINAL IN |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Adjustment Device Type and Quantity | 1 KNOB W/DIAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8142 | Telonic Berkeley, Inc. Dba Telonic Berkeley (USA) |
| 8142S-104 | Telonic Berkeley, Inc. Dba Telonic Berkeley (USA) |
| 3024-100 | Spectrum Control Inc Div Weinschel (USA) |
| 174AS581 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5985-01-086-3785 is a Attenuator,variable, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-01-086-3785 has 4 cross-referenced part numbers: 8142 (Telonic Berkeley, Inc. Dba Telonic Berkeley), 8142S-104 (Telonic Berkeley, Inc. Dba Telonic Berkeley), 3024-100 (Spectrum Control Inc Div Weinschel), 174AS581 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
There are 10 known substitutes for 5985-01-086-3785: 3110-00-156-1866, 5331-00-286-7269, 5940-00-407-2325 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 174AS581: Center to Center Distance Between Mounting Facilities Parallel to Length: 0.750 INCHES NOMINAL IN; Coaxial Connector Series Designation: WPM; Overall Width: 1.375 INCHES MAXIMUM IN; Insertion Loss at Minimum Attenuation in Maximum Decibels: 0.7. 24 total characteristics are documented in the Federal Logistics Information System.