The Waveguide Assembly, cataloged under National Stock Number 5985-01-409-0854, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-409-0854 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Flange Inside Height | 0.394 INCHES NOMINAL FIRST FLANGE IN |
| Flange Quantity | 2 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 0.761 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.313 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.313 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.420 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Length | 2.500 INCHES NOMINAL IN |
| Flange Depth | 0.313 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.313 INCHES NOMINAL FIRST FLANGE IN |
| Material | ALUMINUM ALLOY 1100 SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | COVER TYPE FIRST FLANGE |
| Flange Style | CHOKE TYPE SECOND FLANGE |
| 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 |
|---|---|
| 685746-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 685746-1 | 3/9 Design control — primary reference Drs Sustainment Systems, Inc. |
NSN 5985-01-409-0854 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-409-0854: Flange Inside Height: 0.394 INCHES NOMINAL FIRST FLANGE IN; Flange Quantity: 2; Style Designator: STRAIGHT TYPE; Flexibility: RIGID SINGLE TUBING SEGMENT. 15 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.