The Waveguide Assembly, cataloged under National Stock Number 5985-01-240-6466, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-240-6466 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.497 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.630 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 1.625 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Width | 1.372 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.875 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.875 INCHES NOMINAL FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 1.122 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.255 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE SINGLE CONNECTION FACILITY |
| Waveguide Length | 12.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Specification/standard Data | 81349--287/3 GOVERNMENT SPECIFICATION |
| Waveguide Outside Height | 0.750 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.500 INCHES NOMINAL IN |
| Flange Depth | 0.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.875 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.875 INCHES NOMINAL FIRST FLANGE IN |
| Tubing Twist Type | TWISTABLE SINGLE TUBING SEGMENT |
| Tubing Twist Angle in Deg | 85.0 SINGLE TUBING SEGMENT |
| Waveguide Inside Height | 0.622 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE SINGLE CONNECTION FACILITY |
| Thread Quantity Per Inch | 32 FIRST FLANGE SINGLE CONNECTION FACILITY |
| 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-W-287/3 | 5/9 Secondary reference U.S. Government activity |
| M287/3-36-0121 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-287/3 | 4/1 Identification reference U.S. Government activity |
| FG112CCA12-25 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5985-01-240-6466 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-240-6466: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.497 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.630 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2. 30 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.