The Waveguide Assembly, cataloged under National Stock Number 5985-00-571-8912, 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 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-571-8912 |
| Primary Part Number | 220626 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microtech Inc Dba Microtech Inc |
| Status | ACTIVE |
| Flange Inside Height | 0.139 INCHES MINIMUM AND 0.141 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.10 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 0.370 INCHES MINIMUM AND 0.374 INCHES MAXIMUM ALL FLANGES IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM ALL FLANGES IN |
| Flange Inside Width | 0.279 INCHES MINIMUM AND 0.281 INCHES MAXIMUM ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES SINGLE CONNECTION FACILITY |
| Waveguide Length | 2.875 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.112 INCHES ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Flange Depth | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.04 |
| Surface Treatment | SILVER AND OXIDE FILM SINGLE TUBING SEGMENT ALL SURFACES |
| Thread Class | 2B ALL FLANGES SINGLE CONNECTION FACILITY |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Thread Series Designator | UNF ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Style | CHOKE TYPE ALL FLANGES |
| 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 |
|---|---|
| 220626 | Microtech Inc Dba Microtech Inc (USA) |
| 46597 | Mega Industries Inc Mega Microwave Div (USA) |
| Reference | Meaning |
|---|---|
| 2534865 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 46597 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-571-8912 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-571-8912 has 2 manufacturer part numbers on file: 220626 (Microtech Inc Dba Microtech Inc), 46597 (Mega Industries Inc Mega Microwave Div).
Key specifications for 220626: Flange Inside Height: 0.139 INCHES MINIMUM AND 0.141 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.10; Style Designator: STRAIGHT TYPE. 23 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 5985-00-571-8912 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.