The Adapter,waveguide, cataloged under National Stock Number 5985-01-139-3922, 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 29 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-139-3922 |
| Primary Part Number | 5347698-3 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.25 |
| Adapter Overall Width | 1.625 INCHES NOMINAL IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Flange Inside Diameter | 1.422 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 14.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.625 INCHES NOMINAL SINGLE FLANGE IN |
| Adapter Overall Height | 1.832 INCHES NOMINAL IN |
| Adapter Length | 1.150 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.167 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.900 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SINGLE FLANGE IN |
| Insertion Loss in Decibels | 0.10 |
| Surface Treatment | PAINT SINGLE TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Adapter Height | 1.625 INCHES NOMINAL IN |
| Material | ALUMINUM SINGLE TUBING SEGMENT AND FLANGE |
| Material | STEEL SINGLE COUPLING |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Style | CHOKE TYPE SINGLE FLANGE |
| Coaxial Connector Series Designation | N |
| 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 |
NSN 5985-01-139-3922 is a Adapter,waveguide, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-139-3922 has 2 manufacturer part numbers on file: 90AC729 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 5347698-3 (Naval Sea Systems Command).
Key specifications for 5347698-3: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL SINGLE FLANGE IN; Flange Quantity: 1; Voltage Standing Wave Ratio: 1.25. 29 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 5985-01-139-3922 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.