The Attenuator,variable, cataloged under National Stock Number 5985-01-069-5025, 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 Bfi Optilas Gmbh. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-069-5025 |
| Primary Part Number | AF117A-69-12 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Bfi Optilas Gmbh |
| Status | ACTIVE |
| Shaft Type | ROUND |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.5 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | COAXIAL TYPE |
| Attenuation Accuracy Reference Frequency | 18.0 GIGAHERTZ |
| Segment Attenuation Accuracy in Decibels | -0.50 TO 0.50 AND -1.00 TO 1.00 AND -1.20 TO 1.20 AND -1.40 TO 1.40 AND -1.50 TO 1.50 AND -1.70 TO 1.70 AND -1.90 TO 1.90 |
| Adjustment Device Type and Quantity | 2 SHAFT |
| Overall Attenuation Range in Decibels | +0.0 TO 69.0 |
| Voltage Standing Wave Ratio | 1.60 |
| Segment Attenuation Range in Decibels | +0.00 TO 9.00 AND +10.00 TO 19.00 AND +20.00 TO 29.00 AND +30.00 TO 39.00 AND +40.00 TO 49.00 AND +50.00 TO 59.00 AND +60.00 TO 69.00 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Mounting Thread Quantity | 40 PER INCH |
| Shaft Length | 0.750 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.112 INCHES IN |
| Operating Temp Range | -0.0 TO 54.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, MALE |
| Power Rating | 2.0 WATTS AVERAGE AND 200.0 WATTS PEAK |
| Step Position Quantity | 69 |
| Coaxial Connector Series Designation | WPN |
| 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 |
|---|---|
| AF117A-69-12 | Bfi Optilas Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| AF117A-69-22 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-069-5025 is a Attenuator,variable, manufactured by Bfi Optilas Gmbh, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-069-5025 has 1 manufacturer part number on file: AF117A-69-12 (Bfi Optilas Gmbh).
Key specifications for AF117A-69-12: Shaft Type: ROUND; Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.5; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 THREADED HOLE(S). 25 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.