The Waveguide Assembly, cataloged under National Stock Number 5985-00-783-4567, 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 30 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-783-4567 |
| Primary Part Number | TL574B6N |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | CONVOLUTE SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.311 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.394 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.705 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.312 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.144 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.622 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.705 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND SECOND FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 6.000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.562 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.850 INCHES NOMINAL IN |
| Flange Depth | 0.312 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.375 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.312 INCHES NOMINAL SECOND FLANGE IN |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT INSIDE SURFACES |
| Precious Material and Location | INTERNAL TUBING AND INTERNAL FLANGE SURFACES SILVER |
| Waveguide Inside Height | 0.394 INCHES NOMINAL IN |
| Thread Class | 2B SECOND FLANGE ALL CONNECTION FACILITIES |
| Thread Quantity Per Inch | 32 SECOND FLANGE ALL CONNECTION FACILITIES |
| Material | RUBBER SINGLE TUBING JACKET |
| Material | COPPER ALLOY ALL FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TL574B6N PRIMARY | Microwave Engineering Corporation (USA) |
NSN 5985-00-783-4567 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-783-4567 has 1 manufacturer part number on file: TL574B6N (Microwave Engineering Corporation).
Key specifications for TL574B6N: Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENT; Flange Inside Height: 0.311 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.394 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2. 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 5985-00-783-4567 has DEMIL Code B. 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.