The Waveguide Assembly, cataloged under National Stock Number 5985-01-333-4300, 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 Microtech Inc Dba Microtech Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-333-4300 |
| Primary Part Number | 231659 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microtech Inc Dba Microtech Inc |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIPMENT |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.12 |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 12.350 INCHES MINIMUM AND 12.410 INCHES MAXIMUM IN |
| Flexibility | RIGID THIRD TUBING SEGMENT |
| Flexibility | RIGID FIFTH TUBING SEGMENT |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SIXTH TUBING SEGMENT |
| Flexibility | RIGID FOURTH TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Waveguide Inside Width | 2.840 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Waveguide Outside Height | 1.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 3.000 INCHES NOMINAL IN |
| Insertion Loss in Decibels | 0.10 |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 1.340 INCHES NOMINAL IN |
| Material | ALUMINUM ALL TUBING SEGMENT AND FLANGE |
| Waveguide Longer Offset Distance | 16.680 INCHES MINIMUM AND 16.740 INCHES MAXIMUM 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 |
|---|---|
| 231659 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| 8811-4057-1 | 3/9 Design control — primary reference Drs Icas, Llc |
NSN 5985-01-333-4300 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-333-4300 has 1 manufacturer part number on file: 231659 (Microtech Inc Dba Microtech Inc).
1 possible match (shared part number, not a government interchangeability claim): 6550-01-560-3745. Verify interchangeability with system specifications before substitution.
Key specifications for 231659: FSC Application Data: RADAR EQUIPMENT; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.12; Style Designator: BEND TYPE. 21 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 5985-01-333-4300 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.