The Waveguide Assembly, cataloged under National Stock Number 5985-00-073-0718, 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 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-073-0718 |
| Primary Part Number | 2269790 |
| 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 |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Height | 0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Quantity | 2 |
| Bend Angle in Deg | 90.0 SECOND BEND E-PLANE |
| Bend Angle in Deg | 90.0 THIRD BEND H-PLANE |
| Bend Angle in Deg | 43.2 FIRST BEND H-PLANE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.870 INCHES MINIMUM AND 1.874 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 40.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Connecting Hole Diameter | 0.203 INCHES MINIMUM AND 0.209 INCHES MAXIMUM SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Width | 1.868 INCHES MINIMUM AND 1.876 INCHES MAXIMUM FIRST FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE SINGLE CONNECTION FACILITY |
| Nominal Thread Size | 0.190 INCHES FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Waveguide Outside Height | 1.172 INCHES NOMINAL IN |
| Flange Depth | 0.938 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.281 INCHES NOMINAL SECOND FLANGE IN |
| Surface Treatment | ENAMEL ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN |
| Thread Class | 2B FIRST FLANGE SINGLE CONNECTION FACILITY |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY |
| Flange Outside Diameter | 3.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Diameter | 3.625 INCHES NOMINAL SECOND FLANGE IN |
| 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 |
|---|---|
| 1005614 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 2269790 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 2269790REVC | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5985-00-073-0718 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 5985-00-073-0718 has 2 manufacturer part numbers on file: 1005614 (Lockheed Martin Corporation Div Rms - Mitchel Field), 2269790 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 5977-01-304-4660, 8465-01-582-4453. Verify interchangeability with system specifications before substitution.
Key specifications for 2269790: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN; Flange Inside Height: 0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN. 28 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 5985-00-073-0718 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.