The Attenuator,fixed, cataloged under National Stock Number 5985-01-140-1559, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-140-1559 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM |
| Body Style | RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 6.156 INCHES NOMINAL IN |
| Voltage Standing Wave Ratio | 1.35 |
| Mounting Method | UNTHREADED HOLE(S) |
| Rf Signal Attenuation in Decibels | 20.0 |
| Attenuation Accuracy in Decibels | -0.75 TO 0.75 |
| Connection Type Per Function | MALE INPUT AND FEMALE OUTPUT |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 6.0 GIGAHERTZ |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 3.000 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Power Rating | 150.0 WATTS AVERAGE AND 3.0 KILOWATTS PEAK |
| Terminal Type and Quantity | 2 CONNECTOR |
| Coaxial Connector Series Designation | N |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 769A-20 | 3/2 Design control — primary reference U.S. Government activity |
| 769-20 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-140-1559 is a Attenuator,fixed, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-337-2172. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-140-1559: Overall Height: 4.500 INCHES NOMINAL IN; Frequency Range: 0.000 HERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM; Body Style: RECTANGULAR, TERMINAL/TERMINALS ON OPPOSITE SURFACES; Center to Center Distance Between Mounting Facilities Parallel to Length: 6.156 INCHES NOMINAL IN. 14 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 5985-01-140-1559 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.