The Attenuator,variable, cataloged under National Stock Number 5985-01-272-9495, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-272-9495 |
| Primary Part Number | 2900678-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.0 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Frequency Range | 0.000 HERTZ MINIMUM AND 250.000 MEGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Adjustment Device Type and Quantity | 1 SLOTTED SCREW |
| Voltage Standing Wave Ratio | 1.45 |
| Attenuation Variation Method | CONTINUOUS |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 1.0 WATTS AVERAGE |
| Coaxial Connector Series Designation | SMA |
| 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 |
|---|---|
| AR3344 | Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA) |
| 2900678-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| AR3344 | 5/9 Secondary reference Allied Stroud Corp |
NSN 5985-01-272-9495 is a Attenuator,variable, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-272-9495 has 2 manufacturer part numbers on file: AR3344 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc), 2900678-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2900678-1: Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.0; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Overall Height: 1.850 INCHES NOMINAL IN; Frequency Range: 0.000 HERTZ MINIMUM AND 250.000 MEGAHERTZ MAXIMUM. 11 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.