The Waveguide Assembly, cataloged under National Stock Number 5985-00-003-0340, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-003-0340 |
| Primary Part Number | 2836703 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Tubing Wall Construction Style | STRAIGHT SEAM SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.10 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.897 INCHES MINIMUM AND 0.903 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.570 INCHES MINIMUM FIRST FLANGE IN |
| Flange Outside Height | 1.610 INCHES MAXIMUM SECOND FLANGE IN |
| Waveguide Center to Center Distance | 1.250 INCHES NOMINAL IN |
| Flange Inside Width | 0.897 INCHES MINIMUM AND 0.903 INCHES MAXIMUM ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES FIRST CONNECTION FACILITY |
| Waveguide Length | 4.062 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.997 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN |
| Flange Depth | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 2.070 INCHES MINIMUM AND 2.110 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.04 |
| Surface Treatment | CADMIUM ALL FLANGE OUTSIDE SURFACES |
| Surface Treatment | ALUMINUM SINGLE TUBING SEGMENT INSIDE SURFACES |
| Surface Treatment | CADMIUM SINGLE TUBING SEGMENT OUTSIDE SURFACES |
| Precious Material and Location | FLANGE SURFACE SILVER |
| Waveguide Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN |
| Thread Class | 2B ALL FLANGES SINGLE CONNECTION FACILITY |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Material | ALUMINUM SINGLE TUBING SEGMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-00-003-0340 is a Waveguide Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-003-0340 has 2 manufacturer part numbers on file: A11779 (Autodyne Manufacturing Co Inc), 2836703 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 4820-00-269-4633. Verify interchangeability with system specifications before substitution.
Key specifications for 2836703: Tubing Wall Construction Style: STRAIGHT SEAM SINGLE TUBING SEGMENT; Flange Inside Height: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Precious Material: SILVER. 30 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 5985-00-003-0340 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.