The Waveguide Assembly, cataloged under National Stock Number 5985-01-415-7789, 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 Microwave Engineering Corporation. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-415-7789 |
| Primary Part Number | LE413-0405-0117 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.321 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Criticality Code Justification | FEAT |
| Bend Angle in Deg | 15.0 SINGLE BEND E-PLANE |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.720 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.375 INCHES NOMINAL ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.0931 INCHES MINIMUM AND 0.0935 INCHES MAXIMUM FIRST FLANGE FIRST CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.096 INCHES MINIMUM AND 0.097 INCHES MAXIMUM SECOND FLANGE FIRST CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.0933 INCHES MINIMUM AND 0.0935 INCHES MAXIMUM SECOND FLANGE SECOND CONNECTION FACILITY IN |
| Flange Inside Width | 0.720 INCHES NOMINAL ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES THIRD CONNECTION FACILITY |
| Waveguide Length | 11.180 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES SECOND FLANGE THIRD CONNECTION FACILITY IN |
| Specification/standard Data | 43999-LE413-0405 MANUFACTURERS SPECIFICATION CONTROL |
| Waveguide Outside Height | 0.421 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.820 INCHES NOMINAL IN |
| Flange Depth | 0.245 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 1.375 INCHES NOMINAL ALL FLANGES IN |
| Tubing Twist Type | STRAIGHT TWIST SINGLE TUBING SEGMENT |
| Tubing Twist Angle in Deg | 20.5 SINGLE TUBING SEGMENT |
| Waveguide Inside Height | 0.321 INCHES NOMINAL IN |
| Thread Class | 2A SECOND FLANGE THIRD CONNECTION FACILITY A |
| Material | ALUMINUM ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) SECOND FLANGE SECOND CONNECTION FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| LE413-0405-0117 PRIMARY | Microwave Engineering Corporation (USA) |
| LE413-0405-0117 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| LE413-0405-0117 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| LE413-0405-0117 | 5/9 Secondary reference U.S. Government activity |
| LE413-0405-0115 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
| LE413-0405-0117 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 5985-01-415-7789 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-415-7789 has 2 manufacturer part numbers on file: LE413-0405-0117 (Microwave Engineering Corporation), LE413-0405-0117 (Microtech Inc Dba Microtech Inc).
Key specifications for LE413-0405-0117: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.321 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Criticality Code Justification: FEAT. 28 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 5985-01-415-7789 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.