The Adapter,waveguide, cataloged under National Stock Number 5985-00-241-2291, 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25 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-241-2291 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | SIGNAL GENERATOR EXCEPT SPECIALLY DESIGNED |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.505 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.500 INCHES NOMINAL FIRST FLANGE IN |
| Flange Quantity | 2 |
| Style Designator | WAVEGUIDE TO WAVEGUIDE |
| Waveguide Inside Width | 1.003 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.625 INCHES NOMINAL FIRST FLANGE IN |
| Adapter Length | 2.250 INCHES NOMINAL IN |
| Flange Inside Width | 1.003 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 1.500 INCHES NOMINAL FIRST FLANGE IN |
| Thread Direction | RIGHT-HAND ALL FLANGES SINGLE CONNECTION FACILITY |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Height | 0.505 INCHES NOMINAL IN |
| Material | COPPER ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Flange Style | COVER TYPE SECOND 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 |
|---|---|
| BL409432 | 5/9 Secondary reference American Telephone and Telegraph Co |
| MX135AP | 3/2 Design control — primary reference U.S. Government activity |
| BL409432 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-241-2291 is a Adapter,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-241-2291: FSC Application Data: SIGNAL GENERATOR EXCEPT SPECIALLY DESIGNED; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.505 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.500 INCHES NOMINAL FIRST FLANGE IN. 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.