The Adapter,waveguide, cataloged under National Stock Number 5985-01-201-6358, 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 L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-201-6358 |
| Primary Part Number | 411751-5 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.30 |
| Adapter Overall Width | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR DOUBLE INDENTED |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM SINGLE FLANGE IN |
| Adapter Overall Height | 1.388 INCHES MINIMUM AND 1.403 INCHES MAXIMUM IN |
| Adapter Length | 1.845 INCHES MINIMUM AND 1.925 INCHES MAXIMUM IN |
| Flange Connecting Hole Diameter | 0.096 INCHES MINIMUM SINGLE FLANGE THIRD CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.143 INCHES MINIMUM SINGLE FLANGE FIRST CONNECTION FACILITY IN |
| Flange Inside Width | 0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM SINGLE FLANGE IN |
| Thread Direction | RIGHT-HAND SINGLE FLANGE SECOND CONNECTION FACILITY |
| Nominal Thread Size | 0.112 INCHES SINGLE FLANGE SECOND CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.418 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.788 INCHES MINIMUM AND 0.794 INCHES MAXIMUM IN |
| Flange Depth | 0.590 INCHES MINIMUM AND 0.600 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Outside Width | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM SINGLE FLANGE IN |
| Insertion Loss in Decibels | 0.30 |
| Surface Treatment | CHROMATE ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Adapter Height | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| Thread Class | 2B SINGLE FLANGE SECOND CONNECTION FACILITY |
| Thread Quantity Per Inch | 40 SINGLE FLANGE SECOND CONNECTION FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 411751-5 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| TDR-14C035 | Microwave Engineering Corporation (USA) |
NSN 5985-01-201-6358 is a Adapter,waveguide, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-201-6358 has 2 manufacturer part numbers on file: 411751-5 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), TDR-14C035 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6530-01-587-6412. Verify interchangeability with system specifications before substitution.
Key specifications for 411751-5: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM SINGLE FLANGE 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 5985-01-201-6358 has DEMIL Code D. 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.