The Flange,waveguide, cataloged under National Stock Number 5985-01-259-2699, 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 7 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-259-2699 |
| Primary Part Number | 3256591-12 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Inside Height | 1.340 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Height | 3.000 INCHES NOMINAL ALL FLANGES IN |
| Flange Inside Width | 2.840 INCHES NOMINAL ALL FLANGES IN |
| Flange Depth | 0.460 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 4.500 INCHES NOMINAL ALL FLANGES IN |
| Material | ALUMINUM ALLOY SINGLE FLANGE |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| 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 |
|---|---|
| 3256591-12 | Raytheon Company (USA) |
| 3256591-12 | Raytheon Company Dba Raytheon Co (USA) |
| 3256591-12 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 3256591-12 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5985-01-259-2699 is a Flange,waveguide, 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 5985-01-259-2699 has 3 manufacturer part numbers on file: 3256591-12 (Raytheon Company), 3256591-12 (Raytheon Company Dba Raytheon Co), 3256591-12 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3256591-12: Flange Inside Height: 1.340 INCHES NOMINAL ALL FLANGES IN; Flange Outside Height: 3.000 INCHES NOMINAL ALL FLANGES IN; Flange Inside Width: 2.840 INCHES NOMINAL ALL FLANGES IN; Flange Depth: 0.460 INCHES NOMINAL ALL FLANGES IN. 7 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 5985-01-259-2699 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.