The Coupler,directional, cataloged under National Stock Number 5985-01-715-0640, 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 Vidarf Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-715-0640 |
| Primary Part Number | VDC-0520A20 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Vidarf Inc |
| Status | ACTIVE |
| Power Loss in Decibels | 0.4 |
| Radio Frequency Rating | 0.5 GIGAHERTZ MINIMUM AND 2.0 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 |
|---|---|
| VDC-0520A20 PRIMARY | Vidarf Inc (USA) |
| VDC-0520A20 | M.p.g. Instruments Srl (ITA) |
NSN 5985-01-715-0640 is a Coupler,directional, manufactured by Vidarf Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-715-0640 has 2 manufacturer part numbers on file: VDC-0520A20 (Vidarf Inc), VDC-0520A20 (M.p.g. Instruments Srl).
Key specifications for VDC-0520A20: Power Loss in Decibels: 0.4; Radio Frequency Rating: 0.5 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM; Special Features: OPERATION TEMP:-55 DEG C TO 85 DEG C,VIBRATION:10GS, 10HZ-2000HZ,STORAGE TEMP:-60 DEG C TO 90 DEG C;DIRECTIVITY DB:23,PEAK: 3K DEGC; Part Name Assigned by Controlling Agency: COUPLER. 2 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.
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.