The Waveguide Assembly, cataloged under National Stock Number 5985-01-034-2255, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-034-2255 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Waveguide Outside Diameter | 3.250 INCHES NOMINAL IN |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Diameter | 3.000 INCHES NOMINAL IN |
| Flange Inside Diameter | 3.000 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Diameter | 3.243 INCHES NOMINAL SECOND FLANGE IN |
| Cross-Sectional Shape Style | INTERNAL, ROUND EXTERNAL, ROUND |
| Flange Connecting Hole Diameter | 0.413 INCHES NOMINAL FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Waveguide Length | 121.250 INCHES NOMINAL IN |
| Flange Depth | 0.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.500 INCHES NOMINAL FIRST FLANGE IN |
| Surface Treatment | OXIDE FILM ALL FLANGE INSIDE SURFACES |
| Surface Treatment | ENAMEL ALL FLANGE OUTSIDE SURFACES |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 1 CLAMP RING(S) SECOND FLANGE SINGLE CONNECTION FACILITY |
| Flange Outside Diameter | 4.500 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Diameter | 5.000 INCHES NOMINAL FIRST FLANGE IN |
| Flange Style | CHOKE TYPE SECOND FLANGE |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SM-C-722390-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-034-2255 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-034-2255: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Quantity: 2; Waveguide Outside Diameter: 3.250 INCHES NOMINAL IN; Style Designator: STRAIGHT TYPE. 22 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 5985-01-034-2255 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.