The Attenuator,variable, cataloged under National Stock Number 5985-01-439-8340, 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 Mackay Communications Inc Dba Mackay Marine. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Mackay Communications Inc Dba Mackay Marine (CAGE 3K816) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-439-8340 |
| Primary Part Number | R906566/8945 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Mackay Communications Inc Dba Mackay Marine |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| R906566/8945 PRIMARY | Mackay Communications Inc Dba Mackay Marine (USA) |
| Reference | Meaning |
|---|---|
| R90566/8945 | 5/9 Secondary reference Mackay Communications Inc Dba Mackay Marine |
| RELR 10244/114 | 5/9 Secondary reference Mackay Communications Inc Dba Mackay Marine |
NSN 5985-01-439-8340 is a Attenuator,variable, manufactured by Mackay Communications Inc Dba Mackay Marine, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-439-8340 has 1 manufacturer part number on file: R906566/8945 (Mackay Communications Inc Dba Mackay Marine).
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.