The Coupler,antenna, cataloged under National Stock Number 5985-01-376-4876, 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 Engineering Corporation. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-376-4876 |
| Primary Part Number | EG504AT-109 |
| Item Name | Coupler,antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Terminal Quantity | 4 |
| Terminal Type | CONNECTOR |
| Mounting Configuration | TWO 0.203 IN. DIA MTG HOLES SPACED 2.400 IN. APART IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EG504AT-109 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 10177117 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| AN/ALQ-165 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 74B870202-101 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company Div Defense |
| AN/ALQ-126 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5985-01-376-4876 is a Coupler,antenna, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-376-4876 has 1 manufacturer part number on file: EG504AT-109 (Microwave Engineering Corporation).
Key specifications for EG504AT-109: Overall Height: 0.750 INCHES NOMINAL IN; Terminal Quantity: 4; Terminal Type: CONNECTOR; Overall Length: 3.000 INCHES NOMINAL IN. 3 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 5985-01-376-4876 has DEMIL Code Q. 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.