The Waveguide Assembly, cataloged under National Stock Number 5985-01-401-5283, 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 The Boeing Company Div Legacy Am&m. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-401-5283 |
| Primary Part Number | LE413-0284-0055 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.477 INCHES MINIMUM AND 0.481 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.40 |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.747 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 45.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.852 INCHES MINIMUM AND 0.856 INCHES MAXIMUM FIRST FLANGE IN |
| Waveguide Outside Height | 0.472 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.847 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN |
| Flange Depth | 0.376 INCHES MINIMUM AND 0.406 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Outside Width | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM FIRST FLANGE IN |
| Insertion Loss in Decibels | 0.65 |
| Waveguide Inside Height | 0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Style | COVER 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 |
| Part Number | Manufacturer |
|---|---|
| R30-270 | Microwave Engineering Corporation (USA) |
| LE413-0284-0055 | Microtech Inc Dba Microtech Inc (USA) |
| LE413-0284-0055 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| LE413-0284-0055 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| LE413-0284-0055 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-401-5283 is a Waveguide Assembly, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-401-5283 has 3 manufacturer part numbers on file: R30-270 (Microwave Engineering Corporation), LE413-0284-0055 (Microtech Inc Dba Microtech Inc), LE413-0284-0055 (The Boeing Company Div Legacy Am&m).
Key specifications for LE413-0284-0055: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.477 INCHES MINIMUM AND 0.481 INCHES MAXIMUM FIRST FLANGE IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.40. 20 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 5985-01-401-5283 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.