The Flange,waveguide, cataloged under National Stock Number 5985-01-294-1466, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-294-1466 |
| Primary Part Number | 5543801 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| FSC Application Data | RADAR SYSTEMS |
| Flange Inside Height | 0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM SINGLE FLANGE IN |
| Criticality Code Justification | FEAT |
| Flange Outside Height | 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Connecting Hole Diameter | 0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Flange Inside Width | 0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Flange Depth | 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Outside Width | 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Class | 2B SINGLE FLANGE FIRST CONNECTION FACILITY |
| Thread Quantity Per Inch | 32 SINGLE FLANGE FIRST CONNECTION FACILITY |
| Material | COPPER ALLOY SINGLE TUBING JACKET |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Series Designator | UNF SINGLE FLANGE FIRST CONNECTION FACILITY |
| Flange Style | COVER TYPE SINGLE FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
NSN 5985-01-294-1466 is a Flange,waveguide, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-294-1466 has 2 manufacturer part numbers on file: 5543801 (Naval Sea Systems Command), 5543801 (Raytheon Company).
Key specifications for 5543801: FSC Application Data: RADAR SYSTEMS; Flange Inside Height: 0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM SINGLE FLANGE IN; Criticality Code Justification: FEAT; Flange Outside Height: 1.297 INCHES MINIMUM AND 1.327 INCHES MAXIMUM SINGLE FLANGE IN. 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 5985-01-294-1466 has DEMIL Code B. 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.