The Adapter,waveguide, cataloged under National Stock Number 5985-01-110-2968, 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 26 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 | 5985-01-110-2968 |
| Primary Part Number | LS40-NBL |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS, WAVEGUIDES, AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 1.865 INCHES MINIMUM AND 1.870 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.02 |
| Adapter Overall Width | 5.423 INCHES MINIMUM AND 5.453 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 3.394 INCHES MINIMUM AND 3.406 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 3.735 INCHES MINIMUM AND 3.765 INCHES MAXIMUM SINGLE FLANGE IN |
| Adapter Overall Height | 3.735 INCHES MINIMUM AND 3.765 INCHES MAXIMUM IN |
| Adapter Length | 2.650 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.259 INCHES MINIMUM AND 0.269 INCHES MAXIMUM SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 3.565 INCHES MINIMUM AND 3.570 INCHES MAXIMUM SINGLE FLANGE IN |
| Waveguide Outside Height | 1.854 INCHES MINIMUM AND 1.866 INCHES MAXIMUM IN |
| Waveguide Outside Width | 3.554 INCHES MINIMUM AND 3.566 INCHES MAXIMUM IN |
| Flange Depth | 1.000 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Width | 5.423 INCHES MINIMUM AND 5.453 INCHES MAXIMUM SINGLE FLANGE IN |
| Surface Treatment | CHROMATE AND ENAMEL SINGLE TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 1.694 INCHES MINIMUM AND 1.706 INCHES MAXIMUM IN |
| Adapter Height | 3.735 INCHES MINIMUM AND 3.765 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 SINGLE TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 10 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| Coaxial Connector Series Designation | N |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LS40-NBL PRIMARY | Microwave Engineering Corporation (USA) |
NSN 5985-01-110-2968 is a Adapter,waveguide, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-110-2968 has 1 manufacturer part number on file: LS40-NBL (Microwave Engineering Corporation).
Key specifications for LS40-NBL: FSC Application Data: ANTENNAS, WAVEGUIDES, AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 1.865 INCHES MINIMUM AND 1.870 INCHES MAXIMUM SINGLE FLANGE IN; Flange Quantity: 1. 26 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 5985-01-110-2968 has DEMIL Code Q. 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.