The Waveguide Assembly, cataloged under National Stock Number 5985-01-415-8765, 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 Frontgrade Technologies Inc.. Government technical data includes 30 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-415-8765 |
| Primary Part Number | LE413-0406-0113 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.321 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Bend Angle in Deg | 11.0 FIRST BEND E-PLANE |
| Bend Angle in Deg | 14.0 SECOND BEND E-PLANE |
| Bend Angle in Deg | 70.0 THIRD BEND E-PLANE |
| Style Designator | CORNER TYPE |
| Waveguide Offset Distance | 6.340 INCHES NOMINAL IN |
| Flexibility | RIGID 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 | 0.144 INCHES MINIMUM AND 0.149 INCHES MAXIMUM SECOND FLANGE SECOND 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 FIRST FLANGE SECOND CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.096 INCHES MINIMUM AND 0.097 INCHES MAXIMUM FIRST FLANGE FIRST CONNECTION FACILITY IN |
| Flange Inside Width | 0.720 INCHES NOMINAL ALL FLANGES IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE THIRD CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES FIRST FLANGE THIRD CONNECTION FACILITY IN |
| Specification/standard Data | 43999-LE413-0406 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 |
| Waveguide Inside Height | 0.321 INCHES NOMINAL IN |
| Thread Class | 2A FIRST FLANGE THIRD CONNECTION FACILITY A |
| Material | ALUMINUM ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) FIRST FLANGE SECOND CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 2 UNTHREADED STUD SECOND FLANGE THIRD CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) FIRST FLANGE FIRST CONNECTION FACILITY |
| 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 |
|---|---|
| LE413-0406-0113 | Frontgrade Technologies Inc. (USA) |
| LE413-0406-0113 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| TDR10242 | 3/9 Design control — primary reference K and M Machine Co Inc |
| LE413-0406-0113 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| TDR10242 | 5/9 Secondary reference Microwave Engineering Corporation |
| LE413-0406-0113 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-415-8765 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-415-8765 has 2 manufacturer part numbers on file: LE413-0406-0113 (Frontgrade Technologies Inc.), LE413-0406-0113 (Microtech Inc Dba Microtech Inc).
Key specifications for LE413-0406-0113: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.321 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Bend Angle in Deg: 11.0 FIRST BEND E-PLANE. 30 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 5985-01-415-8765 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.