The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-443-5668, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-443-5668 |
| Primary Part Number | 20-4236 |
| Item Name | Coupler,rotary,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 20-4236 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 7606-8098-3 | 3/9 Design control — primary reference Drs Icas, Llc |
NSN 5985-01-443-5668 is a Coupler,rotary,radio Frequency, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-443-5668 has 1 manufacturer part number on file: 20-4236 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-506-8530. Verify interchangeability with system specifications before substitution.
Key specifications for 20-4236: Special Features: ROTARY JOINT; End Item Identification: AN/SRQ-4 (V) RADIO TERMINAL. 0 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 5985-01-443-5668 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.