The Waveguide Assembly, cataloged under National Stock Number 5985-01-388-9987, 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 22 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-388-9987 |
| Primary Part Number | LE413-0402-0211 |
| 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 ALL TUBING SEGMENT |
| Flange Inside Height | 0.396 INCHES MINIMUM AND 0.396 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Waveguide First Leg Length | 1.250 INCHES MINIMUM IN |
| Waveguide Second Leg Length | 5.750 INCHES NOMINAL IN |
| Style Designator | FIVE BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Waveguide Inside Width | 0.896 INCHES MINIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 45.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Flange Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Outside Height | 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.996 INCHES MINIMUM IN |
| Waveguide Sixth Leg Length | 3.520 INCHES NOMINAL IN |
| Flange Depth | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Inside Height | 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | COVER TYPE ALL FLANGES |
| Waveguide Third Leg Length | 2.300 INCHES NOMINAL IN |
| 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 |
|---|---|
| LE413-0402-0211 | Microtech Inc Dba Microtech Inc (USA) |
| LE413-0402-0211 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| LE413-0402-0211 | Frontgrade Technologies Inc. (USA) |
| TRS645220 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| LE413-0402-0211 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-388-9987 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 5985-01-388-9987 has 4 manufacturer part numbers on file: LE413-0402-0211 (Microtech Inc Dba Microtech Inc), LE413-0402-0211 (The Boeing Company Div Legacy Am&m), LE413-0402-0211 (Frontgrade Technologies Inc.), TRS645220 (Microwave Engineering Corporation).
Key specifications for LE413-0402-0211: Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Inside Height: 0.396 INCHES MINIMUM AND 0.396 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Waveguide First Leg Length: 1.250 INCHES MINIMUM IN. 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 5985-01-388-9987 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.