The Adapter,waveguide, cataloged under National Stock Number 5985-01-343-0441, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-343-0441 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.610 INCHES MINIMUM AND 0.616 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Adapter Overall Width | 1.954 INCHES MINIMUM AND 1.984 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 1.087 INCHES MINIMUM AND 1.093 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR DOUBLE INDENTED |
| Flange Outside Height | 1.376 INCHES MINIMUM AND 1.406 INCHES MAXIMUM SINGLE FLANGE IN |
| Adapter Overall Height | 1.846 INCHES NOMINAL IN |
| Adapter Length | 1.750 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.142 INCHES MINIMUM AND 0.148 INCHES MAXIMUM SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Flange Inside Width | 1.194 INCHES MINIMUM AND 1.200 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SECOND CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Specification/standard Data | 81349-MIL-A-22641/23 GOVERNMENT SPECIFICATION |
| Waveguide Outside Height | 0.603 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.187 INCHES MINIMUM AND 1.193 INCHES MAXIMUM IN |
| Flange Depth | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Outside Width | 1.954 INCHES MINIMUM AND 1.984 INCHES MAXIMUM SINGLE FLANGE IN |
| Waveguide Inside Height | 0.503 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN |
| Adapter Height | 1.391 INCHES NOMINAL IN |
| Thread Class | 2B SINGLE FLANGE SECOND CONNECTION FACILITY |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE SINGLE FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-A-22641/23 | 4/1 Identification reference U.S. Government activity |
| M22641/23-15 | 2/2 Government specification standardization U.S. Government activity |
NSN 5985-01-343-0441 is a Adapter,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-343-0441: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.610 INCHES MINIMUM AND 0.616 INCHES MAXIMUM SINGLE FLANGE IN; Flange Quantity: 1. 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.
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.