The Attenuator,variable, cataloged under National Stock Number 5985-01-419-4996, 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 Anritsu Company. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-419-4996 |
| Primary Part Number | 4412K |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Anritsu Company |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.1 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Mounting Thread Tolerance Class | 2B INTERNAL |
| Frequency Range | 0.000 HERTZ MINIMUM AND 20.000 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, PROGRAMMABLE |
| Overall Attenuation Range in Decibels | +10.0 TO 70.0 |
| Voltage Standing Wave Ratio | 1.25 AND 1.50 AND 1.60 |
| Mounting Facility Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Attenuation Per Step in Decibels | 10.0 |
| Attenuation Variation Method | STEPPED |
| Distance Between Mounting Facility Centers | 3.000 INCHES NOMINAL IN |
| Mounting Thread Quantity | 40 PER INCH |
| Specification/standard Data | 20418-ES8707 MANUFACTURERS SPECIFICATION CONTROL |
| Mounting Facility Nominal Screw Thread Diameter | 0.112 INCHES IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE AND 100.0 WATTS PEAK |
| Step Position Quantity | 7 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4412K PRIMARY | Anritsu Company (USA) |
| ES8707-01 PRIMARY | Anritsu Company (USA) |
| Reference | Meaning |
|---|---|
| ES8707-01 | 7/2 Vendor item drawing reference U.S. Government activity |
| 4412K | 5/9 Secondary reference Wiltron Co |
| ES8707-01 | 7/9 Vendor item drawing reference Drs Sustainment Systems, Inc. |
NSN 5985-01-419-4996 is a Attenuator,variable, manufactured by Anritsu Company, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-419-4996 has 2 manufacturer part numbers on file: 4412K (Anritsu Company), ES8707-01 (Anritsu Company).
Key specifications for 4412K: Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.1; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 2 THREADED HOLE(S); Overall Height: 1.750 INCHES NOMINAL IN. 21 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.
NSN 5985-01-419-4996 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.