The Waveguide Assembly, cataloged under National Stock Number 5985-01-381-0019, 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 11 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5985-01-381-0019 |
| Primary Part Number | TFT-86080 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.20 |
| Bend Angle in Deg | 72.0 SINGLE BEND E-PLANE |
| Style Designator | BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 5.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Specified Frequency | 2.7 GIGAHERTZ MINIMUM AND 3.0 GIGAHERTZ MAXIMUM |
| Insertion Loss in Decibels | 0.20 |
| Flange Style | COVER TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 28.120 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TFT-86080 PRIMARY | Microwave Engineering Corporation (USA) |
| 1389861-201 | Microwave Engineering Corporation (USA) |
| 127236 PRIMARY | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1389861-201 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 127236 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-381-0019 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-381-0019 has 3 manufacturer part numbers on file: TFT-86080 (Microwave Engineering Corporation), 1389861-201 (Microwave Engineering Corporation), 127236 (Frontgrade Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-735-8870. Verify interchangeability with system specifications before substitution.
Key specifications for TFT-86080: Flange Quantity: 2; Voltage Standing Wave Ratio: 1.20; Bend Angle in Deg: 72.0 SINGLE BEND E-PLANE; Style Designator: BEND TYPE. 11 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.
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.