The Coupler,directional, cataloged under National Stock Number 5985-01-009-0645, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 6 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 | 5985-01-009-0645 |
| Primary Part Number | 562174-000 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Usage Design | MAIN LINE TERMINAL FITTING |
| Power Loss in Decibels | 3.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 5.4 GIGAHERTZ MINIMUM AND 5.9 GIGAHERTZ MAXIMUM |
| Unit Type | WAVEGUIDE |
| 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 |
|---|---|
| 2920232 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 187HSA42-40PC | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| 562174-000 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5985-01-009-0645 is a Coupler,directional, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-009-0645 has 3 manufacturer part numbers on file: 2920232 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 187HSA42-40PC (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 562174-000 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 562174-000: Overall Height: 1.327 INCHES MINIMUM AND 1.331 INCHES MAXIMUM IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Usage Design: MAIN LINE TERMINAL FITTING; Power Loss in Decibels: 3.0. 6 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 5985-01-009-0645 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.