The Attenuator,variable, cataloged under National Stock Number 5985-01-323-4342, 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 General Microwave Corporation Div Kratos Microwave Electronics. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-323-4342 |
| Primary Part Number | D1958-3 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | General Microwave Corporation Div Kratos Microwave Electronics |
| Status | ACTIVE |
| Frequency Range | 8.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| Body Style | WAVEGUIDE TYPE |
| Overall Attenuation Range in Decibels | +0.7 TO 1.6 |
| Voltage Standing Wave Ratio | 1.80 |
| Application Design | TRANSMISSION LINE |
| 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 |
|---|---|
| D1958-3 PRIMARY | General Microwave Corporation Div Kratos Microwave Electronics (USA) |
| D1958 OPT.3 | 2 MB Distribution (FRA) |
| 91397318 | Thales Sa (FRA) |
NSN 5985-01-323-4342 is a Attenuator,variable, manufactured by General Microwave Corporation Div Kratos Microwave Electronics, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-323-4342 has 3 manufacturer part numbers on file: D1958-3 (General Microwave Corporation Div Kratos Microwave Electronics), D1958 OPT.3 (2 MB Distribution), 91397318 (Thales Sa).
Key specifications for D1958-3: Overall Height: 1.250 INCHES NOMINAL IN; Frequency Range: 8.000 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM; Body Style: WAVEGUIDE TYPE; Overall Attenuation Range in Decibels: +0.7 TO 1.6. 5 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 5985-01-323-4342 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.