The Waveguide Assembly, cataloged under National Stock Number 5985-01-110-2974, 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 Raytheon E-Systems, Inc. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-110-2974 |
| Primary Part Number | 79-20022-002 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon E-Systems, Inc |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL FIRST FLANGE0.400 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.505 INCHES NOMINAL SECOND FLANGE0.505 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 22 |
| Bend Angle in Deg | 45.0 SINGLE BEND E-PLANE45.0 SINGLE BEND E-PLANE |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 1.422 INCHES NOMINAL SINGLE FLANGE1.422 INCHES NOMINAL SINGLE FLANGE IN |
| Waveguide Inside Width | 0.900 INCHES NOMINAL0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.625 INCHES NOMINAL FIRST FLANGE1.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.625 INCHES NOMINAL SECOND FLANGE1.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES0.169 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Center to Center Distance | 2.000 INCHES NOMINAL IN |
| Flange Inside Width | 0.900 INCHES NOMINAL FIRST FLANGE0.900 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.005 INCHES NOMINAL SECOND FLANGE1.005 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIESRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 2.917 FEET NOMINAL FT |
| Nominal Thread Size | 0.164 INCHES FIRST FLANGE ALL CONNECTION FACILITIES0.164 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL SECOND FLANGE0.438 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL FIRST FLANGE1.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SECOND FLANGE1.625 INCHES NOMINAL SECOND FLANGE IN |
| Surface Treatment | ANODIZE SINGLE TUBING SEGMENT ALL SURFACES |
| Waveguide Inside Height | 0.400 INCHES NOMINAL0.400 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Thread Quantity Per Inch | 32 FIRST FLANGE ALL CONNECTION FACILITIES32 FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | ALUMINUM ALLOY 1100 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 |
| Part Number | Manufacturer |
|---|---|
| 79-20022-002 PRIMARY | Raytheon E-Systems, Inc (USA) |
| 224626 | Microtech Inc Dba Microtech Inc (USA) |
| 2039694-0502 | Honeywell International Inc Dba Honeywell (USA) |
NSN 5985-01-110-2974 is a Waveguide Assembly, manufactured by Raytheon E-Systems, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-110-2974 has 3 manufacturer part numbers on file: 79-20022-002 (Raytheon E-Systems, Inc), 224626 (Microtech Inc Dba Microtech Inc), 2039694-0502 (Honeywell International Inc Dba Honeywell).
Key specifications for 79-20022-002: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL FIRST FLANGE0.400 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.505 INCHES NOMINAL SECOND FLANGE0.505 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 22. 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 5985-01-110-2974 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.