The Holder,antenna Coupler, cataloged under National Stock Number 5985-01-103-5218, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-103-5218 |
| Item Name | Holder,antenna Coupler |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 THREADED HOLE(S) AND 11 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Large End Diameter | 6.000 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.218 INCHES NOMINAL AND 0.196 INCHES NOMINAL FIRST MOUNTING FACILITY IN |
| Style Designator | CYLINDRICAL W/FLARED END |
| Material Document and Classification | QQ-A-601,CLASS M FED SPEC SINGLE MATERIAL RESPONSE |
| Accommodated Item Securing Device Type | HOLES |
| Nominal Thread Size | 0.164 INCHES ALL MOUNTING FACILITIES IN |
| Small End Diameter | 3.811 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE |
| Thread Class | 2B ALL MOUNTING FACILITIES |
| Thread Quantity Per Inch | 32 ALL MOUNTING FACILITIES |
| Material | ALUMINUM ALLOY 356.0 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL MOUNTING FACILITIES |
| 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 |
|---|---|
| 211005-000 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-103-5218 is a Holder,antenna Coupler, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-103-5218: Mounting Facility Type and Quantity: 6 THREADED HOLE(S) AND 11 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Large End Diameter: 6.000 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.218 INCHES NOMINAL AND 0.196 INCHES NOMINAL FIRST MOUNTING FACILITY IN. 14 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.