The Waveguide Assembly, cataloged under National Stock Number 5985-00-563-0865, 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 Northrop Grumman Support Services Corp. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-563-0865 |
| Primary Part Number | 334D183G01 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 1.340 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 1.507 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 2.840 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Connecting Hole Diameter | 0.257 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 2.840 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 3.007 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 5.000 FEET NOMINAL FT |
| Nominal Thread Size | 0.250 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 1.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 3.000 INCHES NOMINAL IN |
| Flange Depth | 0.750 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 1.250 INCHES NOMINAL FIRST FLANGE IN |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT INSIDE SURFACES |
| Precious Material and Location | WAVEGUIDE INTERNAL SURFACES SILVER |
| Waveguide Inside Height | 1.340 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Thread Quantity Per Inch | 20 FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Outside Diameter | 5.313 INCHES NOMINAL SECOND FLANGE IN |
| 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 |
|---|---|
| 334D183G01 | Atlantic Microwave Corporation Div Cobham Electronic Systems (USA) |
| 334D183G01 | Frontgrade Technologies Inc. (USA) |
| 334D183G01 | Waveline Inc (USA) |
| 334D183G01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 334D183G01 | 5/9 Secondary reference Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division |
| 334D183G01 | 3/9 Design control — primary reference U.S. Government activity |
| 225899 | 5/9 Secondary reference Microtech Inc Dba Microtech Inc |
| 334D183G01 | 5/9 Secondary reference Microtech Inc Dba Microtech Inc |
NSN 5985-00-563-0865 is a Waveguide Assembly, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-563-0865 has 4 manufacturer part numbers on file: 334D183G01 (Atlantic Microwave Corporation Div Cobham Electronic Systems), 334D183G01 (Frontgrade Technologies Inc.), 334D183G01 (Waveline Inc), 334D183G01 (Northrop Grumman Support Services Corp).
1 possible match (shared part number, not a government interchangeability claim): 1650-00-968-8396. Verify interchangeability with system specifications before substitution.
Key specifications for 334D183G01: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 1.340 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 1.507 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2. 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 5985-00-563-0865 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.