The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-00-165-1906, 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 Diamond Antenna & Microwave Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-165-1906 |
| Primary Part Number | B23-2255 |
| Item Name | Coupler,rotary,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Diamond Antenna & Microwave Corporation |
| Status | ACTIVE |
| Overall Diameter | 3.500 INCHES MAXIMUM IN |
| Input Impedance Rating in Ohms | 50.0 |
| Radio Frequency Rating | 25.0 MEGAHERTZ MINIMUM AND 1.0 GIGAHERTZ NOMINAL AND 18.0 GIGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| Mounting Configuration | FOUR 0.188 IN. DIA MTG HOLES EQUALLY SPACED ON 3.188 DIA BOLT CIRCLE IN |
| Material | ALUMINUM |
| Output Impedance Rating in Ohms | 50.0 |
| 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 |
|---|---|
| B23-2255 PRIMARY | Diamond Antenna & Microwave Corporation (USA) |
| Reference | Meaning |
|---|---|
| 7011-7410-1 | 7/9 Vendor item drawing reference Drs Icas, Llc |
NSN 5985-00-165-1906 is a Coupler,rotary,radio Frequency, manufactured by Diamond Antenna & Microwave Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-165-1906 has 1 manufacturer part number on file: B23-2255 (Diamond Antenna & Microwave Corporation).
Key specifications for B23-2255: Overall Diameter: 3.500 INCHES MAXIMUM IN; Input Impedance Rating in Ohms: 50.0; Radio Frequency Rating: 25.0 MEGAHERTZ MINIMUM AND 1.0 GIGAHERTZ NOMINAL AND 18.0 GIGAHERTZ MAXIMUM; Overall Length: 5.344 INCHES MAXIMUM IN. 7 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 5985-00-165-1906 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.