The Flange,waveguide, cataloged under National Stock Number 5985-00-665-0549, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-665-0549 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Flange Inside Height | 0.875 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Height | 2.188 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Connecting Hole Diameter | 0.204 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.750 INCHES NOMINAL SINGLE FLANGE IN |
| Specification/standard Data | 81349-MIL-F-3922/75 GOVERNMENT SPECIFICATION |
| Flange Depth | 1.000 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Width | 2.938 INCHES NOMINAL SINGLE FLANGE IN |
| Material | COPPER ALLOY SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 10 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Style | CONTACT 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 |
|---|---|
| UG511U | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| RE-F2687362 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-DTL-3922/75 | 4/1 Identification reference U.S. Government activity |
| M3922/75-03 | 2/2 Government specification standardization U.S. Government activity |
| MIL-F-3922/75 | 5/9 Secondary reference U.S. Government activity |
| RE49F555REVD | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SMS75403 | C/1 Advisory reference — outside the item-of-supply concept Caes Mission Systems Llc |
| UG1909/U | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5985-00-665-0549 is a Flange,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-665-0549: Flange Inside Height: 0.875 INCHES NOMINAL SINGLE FLANGE IN; Flange Outside Height: 2.188 INCHES NOMINAL SINGLE FLANGE IN; Flange Connecting Hole Diameter: 0.204 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN; Flange Inside Width: 1.750 INCHES NOMINAL SINGLE FLANGE IN. 10 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.