The Waveguide Assembly, cataloged under National Stock Number 5985-00-405-1146, 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 L3harris Technologies, Inc Div Space & Airborne Systems. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Microtech Inc Dba Microtech Inc (CAGE 54647); L3harris Technologies, Inc Div Space & Airborne Systems (CAGE 24930); Frontgrade Technologies Inc. (CAGE 66544) |
| Parameter | Value |
|---|---|
| NSN | 5985-00-405-1146 |
| Primary Part Number | 144350-1 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| 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 |
|---|---|
| 144350-1 | Microtech Inc Dba Microtech Inc (USA) |
| 144350-1 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| 123183 | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 144350-1 | 5/9 Secondary reference Astro Microwave Inc |
| 123183 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-405-1146 is a Waveguide Assembly, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-405-1146 has 3 manufacturer part numbers on file: 144350-1 (Microtech Inc Dba Microtech Inc), 144350-1 (L3harris Technologies, Inc Div Space & Airborne Systems), 123183 (Frontgrade Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-674-7415. Verify interchangeability with system specifications before substitution.
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 5985-00-405-1146 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.