The Waveguide Assembly, cataloged under National Stock Number 5985-00-419-0342, 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 22 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5985-00-419-0342 |
| Primary Part Number | TS645-418 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| FSC Application Data | TEST STATION,GUIDED MISSILE REMOTE CONTROL SYSTEM |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.505 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.15 |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 1.333 FEET NOMINAL FT |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 120.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.625 INCHES NOMINAL ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 1.062 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Outside Width | 1.250 INCHES NOMINAL IN |
| Flange Depth | 0.437 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 1.625 INCHES NOMINAL ALL FLANGES IN |
| Insertion Loss in Decibels | 0.10 |
| Waveguide Inside Height | 0.656 INCHES NOMINAL IN |
| Material | BERYLLIUM SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Style | COVER TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 3.310 INCHES NOMINAL IN |
| 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 |
|---|---|
| TS645-418 PRIMARY | Microwave Engineering Corporation (USA) |
| 115884 PRIMARY | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 253623 | 7/2 Vendor item drawing reference U.S. Government activity |
| 115884 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-419-0342 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-419-0342 has 2 manufacturer part numbers on file: TS645-418 (Microwave Engineering Corporation), 115884 (Frontgrade Technologies Inc.).
Key specifications for TS645-418: FSC Application Data: TEST STATION,GUIDED MISSILE REMOTE CONTROL SYSTEM; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.505 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2. 22 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 5985-00-419-0342 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.