The Flange,waveguide, cataloged under National Stock Number 5985-01-348-2790, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-348-2790 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Flange Connecting Hole Diameter | 0.096 INCHES MINIMUM AND 0.097 INCHES MAXIMUM SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.142 INCHES MINIMUM AND 0.148 INCHES MAXIMUM SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CONTACT, FOR DOUBLE RIDGE WAVEGUIDE 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-F-39000/3 | 4/1 Identification reference U.S. Government activity |
| M39000/3-082 | 2/2 Government specification standardization U.S. Government activity |
| MIL-F-39000/3-082 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-348-2790 is a Flange,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5985-01-348-2791, 5985-01-348-3760. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-348-2790: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Flange Connecting Hole Diameter: 0.096 INCHES MINIMUM AND 0.097 INCHES MAXIMUM SINGLE FLANGE SECOND CONNECTION FACILITY IN; Flange Connecting Hole Diameter: 0.142 INCHES MINIMUM AND 0.148 INCHES MAXIMUM SINGLE FLANGE FIRST CONNECTION FACILITY IN; Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY. 6 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.