The Adapter,waveguide, cataloged under National Stock Number 5985-01-052-5179, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 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 | 5985-01-052-5179 |
| Primary Part Number | 2116123 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Waveguide Outside Diameter | 3.620 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO WAVEGUIDE |
| Waveguide Inside Width | 1.668 INCHES MINIMUM AND 1.672 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, ELLIPTICAL EXTERNAL, ROUND |
| Adapter Length | 1.734 INCHES MINIMUM AND 1.766 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.281 INCHES NOMINAL SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SECOND CONNECTION FACILITY |
| Nominal Thread Size | 0.190 INCHES SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Surface Treatment | CHROMATE AND CHROMATE ZINC AND ENAMEL ALL COUPLING OUTSIDE SURFACES |
| Waveguide Inside Height | 1.127 INCHES MINIMUM AND 1.133 INCHES MAXIMUM IN |
| Thread Class | 2B SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Quantity Per Inch | 24 SINGLE FLANGE SECOND CONNECTION FACILITY |
| Material | ALUMINUM ALLOY 6061 SINGLE COUPLING |
| Flange Connecting Facility and Quantity | 6 UNTHREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-052-5179 is a Adapter,waveguide, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-052-5179 has 2 manufacturer part numbers on file: 2116123 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1024647 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 2116123: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Quantity: 2; Waveguide Outside Diameter: 3.620 INCHES MINIMUM AND 3.630 INCHES MAXIMUM IN. 19 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.