The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-591-6406, 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 Scientific Components Corp Dba Mini-Circuits. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5985-01-591-6406 |
| Primary Part Number | BLK-89-S+ |
| Item Name | Coupler,rotary,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Scientific Components Corp Dba Mini-Circuits |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-591-6406 is a Coupler,rotary,radio Frequency, manufactured by Scientific Components Corp Dba Mini-Circuits, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-591-6406 has 3 manufacturer part numbers on file: 15482663 (Bae Systems Electronics Ltd), BLK-389 (Scientific Components Corp Dba Mini-Circuits), BLK-89-S+ (Scientific Components Corp Dba Mini-Circuits).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-713-9901. Verify interchangeability with system specifications before substitution.
Key specifications for BLK-89-S+: Overall Length: 1.180 INCHES NOMINAL IN; Overall Width: 0.410 INCHES NOMINAL IN; Special Features: DC INPUT VOLTAGE: 50V MAX; OP TEMP: -55 DEG TO 100 DEG C V. 0 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.