The Coupler,directional, cataloged under National Stock Number 5985-01-658-0185, 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 Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-658-0185 |
| Primary Part Number | WR-90 90LT529 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| Radio Frequency Rating | 9.5 GIGAHERTZ MINIMUM AND 10.0 GIGAHERTZ MAXIMUM |
| 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 |
|---|---|
| WR-90 90LT529 PRIMARY | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
NSN 5985-01-658-0185 is a Coupler,directional, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-658-0185 has 1 manufacturer part number on file: WR-90 90LT529 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
Key specifications for WR-90 90LT529: Overall Height: 53.848 MILLIMETERS NOMINAL MM; Radio Frequency Rating: 9.5 GIGAHERTZ MINIMUM AND 10.0 GIGAHERTZ MAXIMUM; Overall Length: 40.64 MILLIMETERS NOMINAL MM; Overall Width: 41.148 MILLIMETERS NOMINAL MM. 1 specification is 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.