The Waveguide Assembly, cataloged under National Stock Number 5985-01-333-0910, 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 Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-333-0910 |
| Primary Part Number | 8811-2056-1 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Tubing Wall Construction Style | SEAMLESS SECOND TUBING SEGMENT |
| Tubing Wall Construction Style | CORRUGATED FIRST TUBING SEGMENT |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.12 |
| Waveguide First Leg Length | 3.500 INCHES NOMINAL IN |
| Supplementary Features | FREQUENCY 12.79 TO 15.21 GHZ GHz |
| Waveguide Second Leg Length | 4.180 INCHES NOMINAL IN |
| Style Designator | THREE BEND TYPE |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Waveguide Inside Width | 0.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Waveguide Fourth Leg Length | 3.540 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.475 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.850 INCHES NOMINAL IN |
| Insertion Loss in Decibels | 0.15 |
| Surface Treatment | CHROMATE AND CHROMATE ZINC AND PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 0.375 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY SECOND TUBING SEGMENT |
| Material | COPPER ALLOY FIRST TUBING SEGMENT |
| Material | PLASTIC SINGLE TUBING JACKET |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Waveguide Third Leg Length | 5.650 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8811-2056-1 | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| 231643 | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| 8811-2056-1 | 3/9 Design control — primary reference Drs Icas, Llc |
NSN 5985-01-333-0910 is a Waveguide Assembly, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-333-0910 has 2 manufacturer part numbers on file: 8811-2056-1 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 231643 (Microtech Inc Dba Microtech Inc).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-659-7842. Verify interchangeability with system specifications before substitution.
Key specifications for 8811-2056-1: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIP.; Tubing Wall Construction Style: SEAMLESS SECOND TUBING SEGMENT; Tubing Wall Construction Style: CORRUGATED FIRST TUBING SEGMENT; Flange Quantity: 2. 25 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 5985-01-333-0910 has DEMIL Code Q. 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.