The Coupler,antenna, cataloged under National Stock Number 5985-00-243-4131, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-243-4131 |
| Item Name | Coupler,antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Terminal Quantity | 3 |
| Terminal Type | CONNECTOR AND SCREW STUD AND WIRE LEAD W/TERMINAL LUG |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Radio Frequency Rating | 28.0 MEGAHERTZ MINIMUM AND 65.0 MEGAHERTZ MAXIMUM |
| Tuning Type | FIXED |
| Power Rating | 1.0 WATTS NOMINAL |
| Mounting Configuration | MOUNTS BY 3/8 IN. -24 THD ON SCREW-STUD TYPE TERMINAL,7/16 IN. LG,LOCATED ON ONE END IN |
| Coupling Method | INDUCTIVE-CAPACITIVE |
| Material | PLASTIC PHENOLIC BODY |
| Usage Design | USED TO COUPLE RADIO SET TO ANTENNA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 71-3100TYPETM217 | 3/2 Design control — primary reference U.S. Government activity |
| SCD13536 | 5/2 Secondary reference U.S. Government activity |
| TM217 | 5/2 Secondary reference U.S. Government activity |
| 71-3100 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-243-4131 is a Coupler,antenna, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4730-00-937-0232, 5355-00-968-9341, 3110-01-459-2542. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-243-4131: Terminal Quantity: 3; Terminal Type: CONNECTOR AND SCREW STUD AND WIRE LEAD W/TERMINAL LUG; Overall Diameter: 2.000 INCHES NOMINAL IN; Radio Frequency Rating: 28.0 MEGAHERTZ MINIMUM AND 65.0 MEGAHERTZ MAXIMUM. 10 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.