The Attenuator,fixed, cataloged under National Stock Number 5985-01-280-0817, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-280-0817 |
| Primary Part Number | 2837478-5 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 2000.000 MEGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.563 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.30 |
| Input Impedance Rating in Ohms | 75.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 50.0 |
| Attenuation Accuracy in Decibels | -0.10 TO 0.10 |
| Surface Treatment | SILVER BODY |
| Precious Material and Location | EXTERNAL SURFACES SILVER |
| Connection Type Per Function | FEMALE INPUT AND MALE OUTPUT |
| Operating Temp Range | -55.0 TO 150.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 2000.0 MEGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | COPPER ALLOY BODY |
| Unpackaged Unit Weight | 1.500 OUNCES OZ |
| Power Rating | 2.0 WATTS AVERAGE AND 2000.0 WATTS PEAK |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 75.0 |
| Coaxial Connector Series Designation | BNC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2837478-5 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 672-50-7 | Meca Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 2837478-5 | 5/9 Secondary reference Lockheed Electronics Co Inc Information Engineering Div |
NSN 5985-01-280-0817 is a Attenuator,fixed, 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 5985-01-280-0817 has 2 manufacturer part numbers on file: 2837478-5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 672-50-7 (Meca Electronics Inc).
Key specifications for 2837478-5: Frequency Range: 0.000 HERTZ MINIMUM AND 2000.000 MEGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.563 INCHES NOMINAL IN; Precious Material: SILVER. 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 5985-01-280-0817 has DEMIL Code D. 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.