The Waveguide Assembly, cataloged under National Stock Number 5985-01-033-6974, 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 L3 Technologies, Inc. Div L3 Keo. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-033-6974 |
| Primary Part Number | 039666 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIPMENT |
| Tubing Wall Construction Style | CONVOLUTE SINGLE TUBING SEGMENTCONVOLUTE SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.1386 INCHES MINIMUM AND 0.1386 INCHES MINIMUM AND 0.1414 INCHES MAXIMUM FIRST FLANGE0.1414 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Height | 0.222 INCHES MINIMUM SECOND FLANGE0.222 INCHES MINIMUM SECOND FLANGE IN |
| Flange Quantity | 22 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 0.485 INCHES MINIMUM AND 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM FIRST FLANGE0.515 INCHES MAXIMUM FIRST FLANGE IN |
| Waveguide Inside Width | 0.2785 INCHES MINIMUM AND 0.2785 INCHES MINIMUM AND 0.2815 INCHES MAXIMUM0.2815 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 0.745 INCHES MINIMUM AND 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM SECOND FLANGE0.755 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Height | 0.735 INCHES MINIMUM AND 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM FIRST FLANGE0.765 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.116 INCHES MINIMUM SECOND FLANGE SINGLE CONNECTION FACILITY0.116 INCHES MINIMUM SECOND FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 0.2786 INCHES MINIMUM AND 0.2786 INCHES MINIMUM AND 0.2814 INCHES MAXIMUM FIRST FLANGE0.2814 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Inside Width | 0.362 INCHES MINIMUM SECOND FLANGE0.362 INCHES MINIMUM SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE SINGLE CONNECTION FACILITYRIGHT-HAND FIRST FLANGE SINGLE CONNECTION FACILITY |
| Waveguide Length | 23.000 INCHES MINIMUM AND 25.000 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.112 INCHES FIRST FLANGE SINGLE CONNECTION FACILITY0.112 INCHES FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.218 INCHES MINIMUM AND 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM0.222 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.358 INCHES MINIMUM AND 0.358 INCHES MINIMUM AND 0.362 INCHES MAXIMUM0.362 INCHES MAXIMUM IN |
| Flange Depth | 0.182 INCHES MINIMUM AND 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM SECOND FLANGE0.192 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Depth | 0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM FIRST FLANGE0.225 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Outside Width | 0.745 INCHES MINIMUM AND 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM SECOND FLANGE0.755 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Outside Width | 0.735 INCHES MINIMUM AND 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM FIRST FLANGE0.765 INCHES MAXIMUM FIRST FLANGE IN |
| Tubing Twist Type | TWISTABLE SINGLE TUBING SEGMENTTWISTABLE SINGLE TUBING SEGMENT |
| Tubing Twist Angle in Deg | 90.0 SINGLE TUBING SEGMENT90.0 SINGLE TUBING SEGMENT |
| Waveguide Inside Height | 0.1385 INCHES MINIMUM AND 0.1385 INCHES MINIMUM AND 0.1415 INCHES MAXIMUM0.1415 INCHES MAXIMUM IN |
| Thread Class | 2B FIRST FLANGE SINGLE CONNECTION FACILITY2B FIRST FLANGE SINGLE CONNECTION FACILITY |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| 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 |
|---|---|
| 908B039666 | Microtech Inc Dba Microtech Inc (USA) |
| TS-41-4-B-24-N | Microwave Engineering Corporation (USA) |
| 039666 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 908B039666 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 908B039666 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5985-01-033-6974 is a Waveguide Assembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-033-6974 has 3 manufacturer part numbers on file: 908B039666 (Microtech Inc Dba Microtech Inc), TS-41-4-B-24-N (Microwave Engineering Corporation), 039666 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 039666: FSC Application Data: RADAR EQUIPMENT; Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENTCONVOLUTE SINGLE TUBING SEGMENT; Flange Inside Height: 0.1386 INCHES MINIMUM AND 0.1386 INCHES MINIMUM AND 0.1414 INCHES MAXIMUM FIRST FLANGE0.1414 INCHES MAXIMUM FIRST FLANGE IN; Flange Inside Height: 0.222 INCHES MINIMUM SECOND FLANGE0.222 INCHES MINIMUM 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.
NSN 5985-01-033-6974 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.