The Waveguide Assembly, cataloged under National Stock Number 5985-01-274-1456, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-274-1456 |
| Primary Part Number | 3257781 |
| 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 |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Flange Quantity | 2 |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Style Designator | U-BEND TYPE |
| Waveguide Inside Width | 1.093 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Waveguide Center to Center Distance | 8.780 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.562 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.176 INCHES MINIMUM AND 1.182 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Waveguide Inside Height | 0.484 INCHES NOMINAL IN |
| Waveguide Longer Leg Length | 42.460 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 3257781 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3257781 | Raytheon Company (USA) |
| 3257781 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 3257781 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5985-01-274-1456 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 5985-01-274-1456 has 3 manufacturer part numbers on file: 3257781 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3257781 (Raytheon Company), 3257781 (Raytheon Company Dba Raytheon Co).
Key specifications for 3257781: Unable to Decode: UNABLE TO DECODE; Unable to Decode: UNABLE TO DECODE; Unable to Decode: UNABLE TO DECODE; Flange Quantity: 2. 17 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 5985-01-274-1456 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.