The Waveguide Assembly, cataloged under National Stock Number 5985-01-193-8243, 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 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-193-8243 |
| Primary Part Number | TS645A004 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.200 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.200 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Bend Angle in Deg | 90.0 SINGLE BEND E-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 1.025 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 45.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.000 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 0.910 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.146 INCHES NOMINAL SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 0.900 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.900 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Outside Height | 1.142 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.442 INCHES NOMINAL IN |
| Flange Depth | 0.120 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.190 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.440 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.620 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Height | 0.200 INCHES NOMINAL IN |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 6 UNTHREADED STUD FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE FIRST FLANGE |
| Flange Style | COVER TYPE SECOND FLANGE |
| 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 |
|---|---|
| TS645A004 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 259893-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5985-01-193-8243 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-193-8243 has 1 manufacturer part number on file: TS645A004 (Microwave Engineering Corporation).
Key specifications for TS645A004: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.200 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.200 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2. 28 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 5985-01-193-8243 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.