The Waveguide Assembly, cataloged under National Stock Number 5985-01-310-5418, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-310-5418 |
| Primary Part Number | 1659224 |
| Item Name | Waveguide Assembly |
| 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 |
| Waveguide Width | 3.688 INCHES NOMINAL IN |
| Flange Quantity | 3 |
| Supplementary Features | 1.05 MAX VSWR INTO ARM A; 1.10 MAX VSWR INTO ARM D |
| Bend Angle in Deg | 90.0 FIRST BEND H-PLANE |
| Bend Angle in Deg | 90.0 SECOND BEND H-PLANE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Thread Direction | RIGHT-HAND THIRD FLANGE ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.112 INCHES THIRD FLANGE ALL CONNECTION FACILITIES IN |
| Flange Depth | 0.272 INCHES NOMINAL THIRD FLANGE IN |
| Surface Treatment | CHROMATE ZINC AND ENAMEL AND PASSIVATE ALL TUBING SEGMENT OUTSIDE SURFACES |
| Surface Treatment | CHROMATE ZINC AND ENAMEL AND PASSIVATE SECOND FLANGE OUTSIDE SURFACES |
| Surface Treatment | CHROMATE ZINC AND ENAMEL AND PASSIVATE THIRD FLANGE OUTSIDE SURFACES |
| Surface Treatment | COPPER AND TIN FIRST FLANGE ALL SURFACES |
| Thread Class | 2B THIRD FLANGE ALL CONNECTION FACILITIES |
| Flange Connecting Facility and Quantity | 12 THREADED HOLE(S) THIRD FLANGE ALL CONNECTION FACILITIES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) THIRD FLANGE ALL CONNECTION FACILITIES |
| 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 |
|---|---|
| 1659224 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1659224 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| 1659224 | 5/9 Secondary reference Astro Microwave Inc |
NSN 5985-01-310-5418 is a Waveguide Assembly, 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 5985-01-310-5418 has 1 manufacturer part number on file: 1659224 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1659224: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Waveguide Width: 3.688 INCHES NOMINAL IN; Flange Quantity: 3; Supplementary Features: 1.05 MAX VSWR INTO ARM A; 1.10 MAX VSWR INTO ARM D. 18 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 5985-01-310-5418 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.