The Waveguide Assembly, cataloged under National Stock Number 5985-00-760-4159, 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 Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-760-4159 |
| Primary Part Number | 801-1813 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS ALL TUBING SEGMENT |
| Flange Inside Height | 0.510 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.510 INCHES NOMINAL FIRST FLANGE IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.13 |
| Waveguide Leg Length | 0.750 INCHES NOMINAL IN |
| Style Designator | U-BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Waveguide Inside Width | 1.020 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.688 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.688 INCHES NOMINAL FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN |
| Waveguide Center to Center Distance | 4.421 INCHES NOMINAL IN |
| Flange Inside Width | 1.020 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.020 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.638 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.148 INCHES NOMINAL IN |
| Flange Depth | 0.500 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.500 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.688 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.688 INCHES NOMINAL FIRST FLANGE IN |
| Insertion Loss in Decibels | 0.15 |
| Surface Treatment | ENAMEL ALL TUBING SEGMENT OUTSIDE SURFACES |
| Surface Treatment | CERAMIC ALL TUBING SEGMENT INSIDE SURFACES |
| Waveguide Inside Height | 0.510 INCHES NOMINAL IN |
| Waveguide Longer Leg Length | 4.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 801-1813 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| 801-1813 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
NSN 5985-00-760-4159 is a Waveguide Assembly, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-760-4159 has 1 manufacturer part number on file: 801-1813 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
Key specifications for 801-1813: Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Inside Height: 0.510 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.510 INCHES NOMINAL 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 5985-00-760-4159 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.