The Coupler,directional, cataloged under National Stock Number 5985-01-019-8779, 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 Merrimac Industries, Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-019-8779 |
| Primary Part Number | QHF-2-.312G/16835 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Merrimac Industries, Inc |
| Status | ACTIVE |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 0.25 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 225.0 MEGAHERTZ MINIMUM AND 400.0 MEGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| 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 |
|---|---|
| QHF-2-.312G/16835 PRIMARY | Merrimac Industries, Inc (USA) |
| MPS388 | Semic Rf Electronic Gmbh (DEU) |
| 1P0260-3 PRIMARY | Anaren, Inc. Div Anaren Microwave Inc (USA) |
| 16-01076-002 | Raytheon Company (USA) |
| 1P0260-3 | Kontron Europe Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 5985PL2157319 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MPS388 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-019-8779 is a Coupler,directional, manufactured by Merrimac Industries, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-019-8779 has 5 manufacturer part numbers on file: QHF-2-.312G/16835 (Merrimac Industries, Inc), MPS388 (Semic Rf Electronic Gmbh), 1P0260-3 (Anaren, Inc. Div Anaren Microwave Inc), 16-01076-002 (Raytheon Company), 1P0260-3 (Kontron Europe Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-105-0701. Verify interchangeability with system specifications before substitution.
Key specifications for QHF-2-.312G/16835: Overall Height: 0.124 INCHES NOMINAL IN; Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Power Loss in Decibels: 0.25; Design Type: BIDIRECTIONAL. 5 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 5985-01-019-8779 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.