The Waveguide Assembly, cataloged under National Stock Number 5985-00-291-8406, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-00-291-8406 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | STRAIGHT SEAM ALL TUBING SEGMENT |
| Flange Inside Height | 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Height | 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM FIRST FLANGE IN |
| Waveguide Height | 2.440 INCHES NOMINAL IN |
| Flange Quantity | 2 |
| Bend Angle in Deg | 90.0 FIRST BEND H-PLANE |
| Bend Angle in Deg | 90.0 SECOND BEND H-PLANE |
| Style Designator | DOUBLE BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Waveguide Inside Width | 1.867 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Connecting Hole Diameter | 0.199 INCHES MINIMUM AND 0.203 INCHES MAXIMUM SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Center to Center Distance | 7.510 INCHES NOMINAL IN |
| Flange Inside Width | 2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Width | 1.867 INCHES MINIMUM AND 1.877 INCHES MAXIMUM FIRST FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.190 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN |
| Flange Depth | 0.922 INCHES MINIMUM AND 0.953 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SECOND FLANGE IN |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Thread Quantity Per Inch | 32 FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SECOND 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 |
| Reference | Meaning |
|---|---|
| 583Z1262-19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-291-8406 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-291-8406: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: STRAIGHT SEAM ALL TUBING SEGMENT; Flange Inside Height: 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN; Flange Inside Height: 0.867 INCHES MINIMUM AND 0.877 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 5985-00-291-8406 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.