The Waveguide Assembly, cataloged under National Stock Number 5985-00-254-9720, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-254-9720 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIPMENT,EXCEPT AIRBORNE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.400 INCHES NOMINAL FIRST FLANGE IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.06 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.170 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Center to Center Distance | 3.938 INCHES NOMINAL IN |
| Flange Inside Width | 0.900 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 1.015 INCHES NOMINAL FIRST FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 2.250 INCHES NOMINAL IN |
| Nominal Thread Size | 0.128 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL IN |
| Flange Depth | 0.500 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL FIRST FLANGE IN |
| Tubing Twist Type | STRAIGHT TWIST SINGLE TUBING SEGMENT |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 743500-1 | 3/9 Design control — primary reference Rca Corp Distributor and Special Products Div |
| 743500-1 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5985-00-254-9720 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-00-254-9720: FSC Application Data: RADAR EQUIPMENT,EXCEPT AIRBORNE; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.400 INCHES NOMINAL FIRST FLANGE IN. 28 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 5985-00-254-9720 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.