The Waveguide Assembly, cataloged under National Stock Number 5985-01-263-8665, 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 Microwave Engineering Corporation. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-263-8665 |
| Primary Part Number | TDRS-22100-1 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIPMENT |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.30 |
| Bend Angle in Deg | 90.0 SECOND BEND H-PLANE |
| Bend Angle in Deg | 12.0 FIRST BEND E-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 3.825 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Flange Connecting Hole Diameter | 0.129 INCHES MINIMUM SECOND FLANGE FIRST CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.144 INCHES MINIMUM FIRST FLANGE SINGLE CONNECTION FACILITY IN |
| Thread Direction | RIGHT-HAND SECOND FLANGE SECOND CONNECTION FACILITY |
| Nominal Thread Size | 0.138 INCHES SECOND FLANGE SECOND CONNECTION FACILITY IN |
| Insertion Loss in Decibels | 0.15 |
| Thread Quantity Per Inch | 32 SECOND FLANGE SECOND CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) SECOND FLANGE FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) SECOND FLANGE SECOND CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SECOND FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE FIRST FLANGE |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE SECOND FLANGE |
| Waveguide Longer Offset Distance | 6.060 INCHES NOMINAL IN |
| 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 |
|---|---|
| TDRS-22100-1 PRIMARY | Microwave Engineering Corporation (USA) |
| LE413-0251-0019 | The Boeing Company Div Legacy Am&m (USA) |
| LE413-0251-0019 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| LE413-0251-0019 | C/1 Advisory reference — outside the item-of-supply concept Frontgrade Technologies Inc. |
| LE413-0251-0019 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-263-8665 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-263-8665 has 3 manufacturer part numbers on file: TDRS-22100-1 (Microwave Engineering Corporation), LE413-0251-0019 (The Boeing Company Div Legacy Am&m), LE413-0251-0019 (Microtech Inc Dba Microtech Inc).
Key specifications for TDRS-22100-1: FSC Application Data: RADAR EQUIPMENT; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.30; Bend Angle in Deg: 90.0 SECOND BEND H-PLANE. 22 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 5985-01-263-8665 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.