The Adapter,waveguide, cataloged under National Stock Number 5985-00-296-4941, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-296-4941 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 3.420 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.25 |
| Adapter Overall Width | 8.688 INCHES NOMINAL IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 6.500 INCHES NOMINAL IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 5.438 INCHES NOMINAL SINGLE FLANGE IN |
| Adapter Overall Height | 8.264 INCHES NOMINAL IN |
| Adapter Length | 5.250 INCHES NOMINAL IN |
| Flange Connecting Hole Diameter | 0.328 INCHES NOMINAL SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 6.670 INCHES NOMINAL SINGLE FLANGE IN |
| Specification/standard Data | 81349-MIL-A-22641/16 GOVERNMENT SPECIFICATION |
| Waveguide Outside Height | 3.410 INCHES NOMINAL IN |
| Waveguide Outside Width | 6.660 INCHES NOMINAL IN |
| Flange Depth | 1.000 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Width | 8.688 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Inside Height | 3.250 INCHES NOMINAL IN |
| Adapter Height | 5.438 INCHES NOMINAL IN |
| Material | COPPER SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 10 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| Coaxial Connector Series Designation | N |
| 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 |
|---|---|
| M22641/16-07 | 2/2 Government specification standardization U.S. Government activity |
| MIL-A-22641/16 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-22641/16 | 4/1 Identification reference U.S. Government activity |
| UG-953/U | 5/1 Secondary reference U.S. Government activity |
NSN 5985-00-296-4941 is a Adapter,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5985-00-892-0732, 5985-00-908-0425, 5985-00-952-3661. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-296-4941: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 3.420 INCHES NOMINAL SINGLE FLANGE IN; Flange Quantity: 1; Voltage Standing Wave Ratio: 1.25. 25 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.