The Waveguide Assembly, cataloged under National Stock Number 5985-00-735-4740, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-735-4740 |
| Primary Part Number | 2115783 |
| 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 | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Height | 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Quantity | 2 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.8985 INCHES MINIMUM AND 0.9015 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.191 INCHES MINIMUM AND 0.199 INCHES MAXIMUM FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.191 INCHES MINIMUM AND 0.199 INCHES MAXIMUM SECOND FLANGE FIRST CONNECTION FACILITY IN |
| Flange Inside Width | 0.897 INCHES MINIMUM AND 0.903 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Width | 0.897 INCHES MINIMUM AND 0.903 INCHES MAXIMUM SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND SECOND FLANGE SECOND CONNECTION FACILITY |
| Waveguide Length | 1.811 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES SECOND FLANGE SECOND CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.4985 INCHES MINIMUM AND 0.5015 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.9985 INCHES MINIMUM AND 1.0015 INCHES MAXIMUM IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Inside Height | 0.3985 INCHES MINIMUM AND 0.4015 INCHES MAXIMUM IN |
| Thread Class | 2B SECOND FLANGE SECOND CONNECTION FACILITY |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) SECOND FLANGE SECOND CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE FIRST CONNECTION FACILITY |
| Flange Outside Diameter | 4.375 INCHES NOMINAL FIRST FLANGE IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SECOND FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-00-735-4740 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 5985-00-735-4740 has 2 manufacturer part numbers on file: 1024157 (Lockheed Martin Corporation Div Rms - Mitchel Field), 2115783 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2115783: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM SECOND FLANGE IN; Flange Inside Height: 0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM FIRST FLANGE IN; Flange Quantity: 2. 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 5985-00-735-4740 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.