The Waveguide Assembly, cataloged under National Stock Number 5985-01-103-2686, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-103-2686 |
| Primary Part Number | 060042 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.170 INCHES NOMINAL FIRST FLANGE0.170 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.254 INCHES NOMINAL SECOND FLANGE0.254 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Height | 0.870 INCHES NOMINAL IN |
| Flange Quantity | 22 |
| Voltage Standing Wave Ratio | 1.301.30 |
| Bend Angle in Deg | 90.0 ALL BENDS H-PLANE90.0 ALL BENDS H-PLANE |
| Style Designator | DOUBLE BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 0.625 INCHES NOMINAL FIRST FLANGE0.625 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Width | 0.420 INCHES NOMINAL0.420 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 0.875 INCHES NOMINAL FIRST FLANGE0.875 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 0.875 INCHES NOMINAL SECOND FLANGE0.875 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.116 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES0.116 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Center to Center Distance | 1.120 INCHES NOMINAL IN |
| Flange Inside Width | 0.420 INCHES NOMINAL FIRST FLANGE0.420 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.504 INCHES NOMINAL SECOND FLANGE0.504 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIESRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.112 INCHES FIRST FLANGE ALL CONNECTION FACILITIES0.112 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Flange Depth | 0.188 INCHES NOMINAL SECOND FLANGE0.188 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.285 INCHES NOMINAL FIRST FLANGE0.285 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 0.875 INCHES NOMINAL FIRST FLANGE0.875 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 0.875 INCHES NOMINAL SECOND FLANGE0.875 INCHES NOMINAL SECOND FLANGE IN |
| Insertion Loss in Decibels | 0.500.50 |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.170 INCHES NOMINAL0.170 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES2B FIRST FLANGE ALL CONNECTION FACILITIES |
| 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 |
|---|---|
| 060042 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 933C055955 | Microwave Engineering Corporation (USA) |
| 933C055955 | Mitec Microwave (CAN) |
| Reference | Meaning |
|---|---|
| TR495016 | C/1 Advisory reference — outside the item-of-supply concept Microwave Engineering Corporation |
| 055955 | 7/2 Vendor item drawing reference L3 Technologies, Inc. Div L3 Keo |
| 999C060042 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 933C055955 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 5985-01-103-2686 is a Waveguide Assembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-103-2686 has 3 manufacturer part numbers on file: 060042 (L3 Technologies, Inc. Div L3 Keo), 933C055955 (Microwave Engineering Corporation), 933C055955 (Mitec Microwave).
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-519-6131, 2610-01-727-4259. Verify interchangeability with system specifications before substitution.
Key specifications for 060042: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.170 INCHES NOMINAL FIRST FLANGE0.170 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.254 INCHES NOMINAL SECOND FLANGE0.254 INCHES NOMINAL SECOND FLANGE IN; Waveguide Height: 0.870 INCHES NOMINAL 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 5985-01-103-2686 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.