The Coupling,waveguide, cataloged under National Stock Number 5985-01-444-1904, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-444-1904 |
| Item Name | Coupling,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Coupling Outside Width | 1.020 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Coupling Outside Height | 0.410 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY SINGLE COUPLING |
| Coupling Overall Depth | 0.410 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A90BE69 | 3/2 Design control — primary reference U.S. Government activity |
| MBE90-901A | 5/9 Secondary reference U.S. Government activity |
| 900945-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5985-01-444-1904 is a Coupling,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1710-01-584-5462, 5940-01-592-6247. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-444-1904: Coupling Outside Width: 1.020 INCHES NOMINAL IN; Style Designator: RECTANGULAR; Coupling Outside Height: 0.410 INCHES NOMINAL IN; Special Features: WAVEGUIDE BEND, 90 DEG.MITER, E-PLANE; PEAK POWER, 250 KW; AVERAGE POWER, 10 KW; FREQUENCY RANGE, 8.2 TO 12.4 GHZ; VSWR, 1.05:1 MAX.; OPERATING TEMPERATURE RANGE, M55 DEG.C. TO P200 DEG.C.; FUNGUS RESISTANT GHz. 5 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 5985-01-444-1904 has DEMIL Code Q. 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.