The Flange,waveguide, cataloged under National Stock Number 5985-01-040-9491, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-040-9491 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Flange Inside Height | 0.310 INCHES MINIMUM AND 0.312 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Inside Width | 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Direction | RIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Nominal Thread Size | 0.164 INCHES SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Flange Depth | 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM SINGLE FLANGE IN |
| Surface Treatment | ANODIZE SINGLE FLANGE OUTSIDE SURFACES |
| Thread Class | 2B SINGLE FLANGE FIRST CONNECTION FACILITY |
| Thread Class | 2B SINGLE FLANGE SECOND CONNECTION FACILITY |
| Material | ALUMINUM SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Outside Diameter | 2.540 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 20-797645-2 | 3/9 Design control — primary reference General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
NSN 5985-01-040-9491 is a Flange,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-040-9491: Flange Inside Height: 0.310 INCHES MINIMUM AND 0.312 INCHES MAXIMUM SINGLE FLANGE IN; Flange Inside Width: 0.621 INCHES MINIMUM AND 0.623 INCHES MAXIMUM SINGLE FLANGE IN; Thread Direction: RIGHT-HAND SINGLE FLANGE SECOND CONNECTION FACILITY; Thread Direction: RIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY. 17 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.
NSN 5985-01-040-9491 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.