The Adapter,waveguide, cataloged under National Stock Number 5985-01-237-3982, 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 Waveline Inc. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-237-3982 |
| Primary Part Number | 401NF |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Waveline Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.753 INCHES MINIMUM AND 0.756 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.25 |
| Input Impedance Rating in Ohms | 50.0 |
| Adapter Diameter | 3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 1.368 INCHES MINIMUM AND 1.376 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Adapter Overall Height | 3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM IN |
| Adapter Length | 2.094 INCHES MINIMUM AND 2.156 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.199 INCHES MINIMUM AND 0.203 INCHES MAXIMUM SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.503 INCHES MINIMUM AND 1.506 INCHES MAXIMUM SINGLE FLANGE IN |
| Waveguide Outside Height | 0.746 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.496 INCHES MINIMUM AND 1.504 INCHES MAXIMUM IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SINGLE FLANGE IN |
| Surface Treatment | CHROMATE AND ENAMEL BAKED ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.618 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 6 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Outside Diameter | 3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Style | COVER TYPE SINGLE FLANGE |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | N |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 401NF PRIMARY | Waveline Inc (USA) |
NSN 5985-01-237-3982 is a Adapter,waveguide, manufactured by Waveline Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-237-3982 has 1 manufacturer part number on file: 401NF (Waveline Inc).
Key specifications for 401NF: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.753 INCHES MINIMUM AND 0.756 INCHES MAXIMUM SINGLE FLANGE IN; Flange Quantity: 1. 26 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.