The Coupler,transmission Line, cataloged under National Stock Number 5985-01-658-1689, 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 Sippican, Inc. Div Lockheed Martin Marion. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Coupler,transmission Line |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion (CAGE 16848) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-658-1689 |
| Primary Part Number | 251101-1 |
| Item Name | Coupler,transmission Line |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 251101-1 PRIMARY | Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion (USA) |
NSN 5985-01-658-1689 is a Coupler,transmission Line, manufactured by Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-658-1689 has 1 manufacturer part number on file: 251101-1 (Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion).
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.