The Waveguide Assembly, cataloged under National Stock Number 5985-00-239-1185, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-239-1185 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS ALL TUBING SEGMENT |
| Flange Inside Height | 0.507 INCHES MINIMUM AND 0.513 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Height | 0.507 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.12 |
| Waveguide First Leg Length | 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN |
| Waveguide Second Leg Length | 4.000 INCHES NOMINAL IN |
| Style Designator | THREE BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Flange Inside Diameter | 1.280 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Width | 1.017 INCHES MINIMUM AND 1.023 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Outside Height | 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.017 INCHES MINIMUM AND 1.023 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Width | 1.017 INCHES MINIMUM AND 1.023 INCHES MAXIMUM SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.164 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Fourth Leg Length | 1.750 INCHES MAXIMUM IN |
| Waveguide Outside Height | 0.633 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.143 INCHES MINIMUM AND 1.153 INCHES MAXIMUM IN |
| Flange Depth | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Depth | 0.485 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Width | 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Outside Width | 1.672 INCHES MINIMUM AND 1.702 INCHES MAXIMUM SECOND FLANGE IN |
| Insertion Loss in Decibels | 0.10 |
| Surface Treatment | CHROMATE AND ENAMEL ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.507 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2169729-501 | 3/9 Design control — primary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5985-00-239-1185 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-239-1185: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Inside Height: 0.507 INCHES MINIMUM AND 0.513 INCHES MAXIMUM FIRST FLANGE IN; Flange Inside Height: 0.507 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SECOND FLANGE IN. 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.
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.