The Attenuator,variable, cataloged under National Stock Number 5985-01-390-0634, 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 Microwave Consulting Corporation Dba Mcc Norsal. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-390-0634 |
| Primary Part Number | DCA-1273 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Consulting Corporation Dba Mcc Norsal |
| Status | ACTIVE |
| Insertion Loss at Minimum Attenuation in Maximum Decibels | 2.5 |
| Frequency Range | 1.500 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM |
| Overall Attenuation Range in Decibels | +0.0 TO 60.0 |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Application Design | WAVEGUIDE |
| Power Rating | 100.0 MILLIWATTS AVERAGE |
| Step Position Quantity | 60 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DCA-1273 PRIMARY | Microwave Consulting Corporation Dba Mcc Norsal (USA) |
| Reference | Meaning |
|---|---|
| 6011923-001 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
NSN 5985-01-390-0634 is a Attenuator,variable, manufactured by Microwave Consulting Corporation Dba Mcc Norsal, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-390-0634 has 1 manufacturer part number on file: DCA-1273 (Microwave Consulting Corporation Dba Mcc Norsal).
Key specifications for DCA-1273: Insertion Loss at Minimum Attenuation in Maximum Decibels: 2.5; Frequency Range: 1.500 GIGAHERTZ MINIMUM AND 2.000 GIGAHERTZ MAXIMUM; Overall Attenuation Range in Decibels: +0.0 TO 60.0; Attenuation Per Step in Decibels: 1.0. 8 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.