The Waveguide Assembly, cataloged under National Stock Number 5985-01-139-3689, 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. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Microwave Engineering Corporation (CAGE 06351); Microtech Inc Dba Microtech Inc (CAGE 54647) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-139-3689 |
| Primary Part Number | TRS68156 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| TRS68156 PRIMARY | Microwave Engineering Corporation (USA) |
| 228265-1 PRIMARY | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-D-973744-1 | 3/9 Design control — primary reference U.S. Government activity |
| SM-D-973744-1 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5985-01-139-3689 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-139-3689 has 2 manufacturer part numbers on file: TRS68156 (Microwave Engineering Corporation), 228265-1 (Microtech Inc Dba Microtech Inc).
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 5985-01-139-3689 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.