The Waveguide, cataloged under National Stock Number 5985-01-115-2323, 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 Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-115-2323 |
| Primary Part Number | 90TH42E-1-1-90J-S22-1-1 |
| Item Name | Waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| Waveguide Width | 2.250 INCHES NOMINAL IN |
| Waveguide Height | 3.570 INCHES NOMINAL IN |
| Style Designator | TEE, HYBRID TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Waveguide Length | 2.980 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY SINGLE TUBING SEGMENT |
| Waveguide Longer Offset Distance | 1.750 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 |
|---|---|
| 90TH42E-1-1-90J-S22-1-1 PRIMARY | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 380-10258-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5985-01-115-2323 is a Waveguide, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-115-2323 has 1 manufacturer part number on file: 90TH42E-1-1-90J-S22-1-1 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
Key specifications for 90TH42E-1-1-90J-S22-1-1: Waveguide Width: 2.250 INCHES NOMINAL IN; Waveguide Height: 3.570 INCHES NOMINAL IN; Style Designator: TEE, HYBRID TYPE; Flexibility: RIGID ALL TUBING SEGMENT. 7 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.