The Attenuator,variable, cataloged under National Stock Number 5985-01-356-8597, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-356-8597 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 1.5 |
| Impedance Rating in Ohms | 50.0 INPUT-OUTPUT |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Frequency Range | 0.000 HERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM |
| Body Style | COAXIAL TYPE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, PROGRAMMABLE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.000 INCHES NOMINAL IN |
| Overall Attenuation Range in Decibels | +0.0 TO 63.0 |
| Voltage Standing Wave Ratio | 1.20 |
| Unthreaded Mounting Hole Diameter | 0.125 INCHES NOMINAL IN |
| Overall Attenuation Accuracy in Decibels | -0.60 TO 0.60 |
| Attenuation Per Step in Decibels | 1.0 AND 2.0 AND 4.0 AND 8.0 AND 16.0 AND 32.0 |
| Attenuation Variation Method | STEPPED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.000 INCHES NOMINAL IN |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE AND 7 PIN AND 1 TURRET |
| Power Rating | 100.0 MILLIWATTS AVERAGE |
| Step Position Quantity | 6 |
| 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 |
| Reference | Meaning |
|---|---|
| 004-338-00 | 5/9 Secondary reference Trilithic, Inc. |
| 117191 | 3/9 Design control — primary reference Boeing Company, the |
NSN 5985-01-356-8597 is a Attenuator,variable, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-363-2825. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-356-8597: Insertion Loss at Minimum Attenuation in Maximum Decibels: 1.5; Impedance Rating in Ohms: 50.0 INPUT-OUTPUT; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Overall Height: 1.260 INCHES NOMINAL IN. 20 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.