The Attenuator,variable, cataloged under National Stock Number 5985-01-277-0781, 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 L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-277-0781 |
| Primary Part Number | 434455-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.6 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 1.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Segment Attenuation Accuracy in Decibels | -0.50 TO 0.50 AND -1.00 TO 1.00 AND -1.50 TO 1.50 |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, VOLTAGE CONTROLLED |
| Overall Attenuation Range in Decibels | +0.0 TO 60.0 |
| Voltage Standing Wave Ratio | 1.50 |
| Segment Attenuation Range in Decibels | +0.00 TO 30.00 AND +30.00 TO 50.00 AND +50.00 TO 60.00 |
| Unthreaded Mounting Hole Diameter | 0.130 INCHES NOMINAL IN |
| Overall Attenuation Accuracy in Decibels | -1.50 TO 1.50 |
| Attenuation Per Step in Decibels | 0.5 AND 1.0 AND 1.5 |
| Attenuation Variation Method | STEPPED |
| Distance Between Mounting Facility Centers | 2.350 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE AND 4 PIN |
| Power Rating | 1.0 WATTS AVERAGE AND 25.0 WATTS PEAK |
| Step Position Quantity | 3 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-277-0781 is a Attenuator,variable, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-277-0781 has 2 manufacturer part numbers on file: D1951 (General Microwave Corporation Div Kratos Microwave Electronics), 434455-1 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
Key specifications for 434455-1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.6; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 0.500 INCHES NOMINAL IN. 22 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 5985-01-277-0781 has DEMIL Code Q. 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.