The Waveguide Assembly, cataloged under National Stock Number 5985-01-190-3490, 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 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-190-3490 |
| Primary Part Number | TDRS22071 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Waveguide Length | 18.200 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 |
|---|---|
| LE413-0234-0003 | Microtech Inc Dba Microtech Inc (USA) |
| TDRS22071 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| LE413-0234-0003 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| LE413-0234-0003 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| LE413-0234-0003 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-190-3490 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-190-3490 has 2 manufacturer part numbers on file: LE413-0234-0003 (Microtech Inc Dba Microtech Inc), TDRS22071 (Microwave Engineering Corporation).
Key specifications for TDRS22071: Flexibility: FLEXIBLE FIRST TUBING SEGMENT; Flexibility: RIGID SECOND TUBING SEGMENT; Waveguide Length: 18.200 INCHES NOMINAL IN; End Item Identification: B-1B. 3 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 5985-01-190-3490 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.