The Attenuator,variable, cataloged under National Stock Number 5985-01-435-1999, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-435-1999 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Impedance Rating in Ohms | 50.0 INPUT AND 50.0 OUTPUT |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Frequency Range | 0.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM |
| Mounting Facility Pattern | THREE POSITION CIRCULAR |
| Overall Attenuation Range in Decibels | +6.0 TO 133.0 |
| Voltage Standing Wave Ratio | 1.60 |
| Unthreaded Mounting Hole Diameter | 0.128 INCHES NOMINAL IN |
| Overall Attenuation Accuracy in Decibels | -1.00 TO 1.00 |
| Attenuation Variation Method | CONTINUOUS |
| Application Design | TRANSMISSION LINE |
| Terminal Type and Quantity | 2 CONNECTOR, COAXIAL, FEMALE |
| Power Rating | 2.0 WATTS AVERAGE |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3100-127 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-435-1999 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): 5310-01-537-7921. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-435-1999: Impedance Rating in Ohms: 50.0 INPUT AND 50.0 OUTPUT; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Overall Height: 2.520 INCHES MAXIMUM IN; Frequency Range: 0.000 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM. 13 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 5985-01-435-1999 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.