The Adapter,waveguide, cataloged under National Stock Number 5985-01-231-3152, 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 Microwave Engineering Corporation. Government technical data includes 29 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-231-3152 |
| Primary Part Number | R42-3B-3.5-8.2 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.821 INCHES MINIMUM AND 0.827 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.25 |
| Adapter Overall Width | 2.735 INCHES MINIMUM AND 2.765 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 1.477 INCHES MINIMUM AND 1.483 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR DOUBLE INDENTED |
| Flange Outside Height | 1.085 INCHES MINIMUM AND 2.015 INCHES MAXIMUM SINGLE FLANGE IN |
| Adapter Overall Height | 1.542 INCHES MINIMUM AND 2.007 INCHES MAXIMUM IN |
| Adapter Length | 1.450 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.145 INCHES MINIMUM AND 0.148 INCHES MAXIMUM SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Flange Inside Width | 1.613 INCHES MINIMUM AND 1.619 INCHES MAXIMUM ALL FLANGES IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.812 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.604 INCHES MINIMUM AND 1.612 INCHES MAXIMUM IN |
| Flange Depth | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 2.735 INCHES MINIMUM AND 2.765 INCHES MAXIMUM SINGLE FLANGE IN |
| Insertion Loss in Decibels | 0.15 |
| Waveguide Inside Height | 0.685 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN |
| Adapter Height | 1.085 INCHES MINIMUM AND 2.015 INCHES MAXIMUM IN |
| Thread Class | 2B SINGLE FLANGE FIRST CONNECTION FACILITY |
| Thread Quantity Per Inch | 32 SINGLE FLANGE FIRST CONNECTION FACILITY |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| 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 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| R42-3B-3.5-8.2 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 453004-S | 5/9 Secondary reference U.S. Government activity |
| 290166P3 | 3/2 Design control — primary reference U.S. Government activity |
| 453089 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-231-3152 is a Adapter,waveguide, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-231-3152 has 1 manufacturer part number on file: R42-3B-3.5-8.2 (Microwave Engineering Corporation).
Key specifications for R42-3B-3.5-8.2: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.821 INCHES MINIMUM AND 0.827 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 1. 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 5985-01-231-3152 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.