The Waveguide Assembly, cataloged under National Stock Number 5985-01-343-2428, 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 Naval Sea Systems Command. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-343-2428 |
| Primary Part Number | 6166247-61 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.20 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.118 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 15.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.730 INCHES MINIMUM AND 1.770 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.169 INCHES MINIMUM AND 0.171 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.118 INCHES MINIMUM AND 1.126 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Length | 9.500 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.621 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.246 INCHES MINIMUM AND 1.254 INCHES MAXIMUM IN |
| Flange Depth | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 2.480 INCHES MINIMUM AND 2.520 INCHES MAXIMUM ALL FLANGES IN |
| Tubing Twist Type | TWISTABLE SINGLE TUBING SEGMENT |
| Insertion Loss in Decibels | 0.20 |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT INSIDE SURFACES |
| Surface Treatment | CHROMATE AND CADMIUM ALL FLANGE OUTSIDE SURFACES |
| Precious Material and Location | INTERNAL SURFACES SILVER |
| Waveguide Inside Height | 0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN |
| Material | COPPER ALLOY ALL FLANGE |
| Material | COPPER ALLOY OR RUBBER NATURAL SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE ALL FLANGES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6166247-61 PRIMARY | Naval Sea Systems Command (USA) |
| 230830 | Microtech Inc Dba Microtech Inc (USA) |
| 6166247-61 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 127976-61 | 5/9 Secondary reference U.S. Government activity |
| 6166247-61 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-343-2428 is a Waveguide Assembly, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-343-2428 has 3 manufacturer part numbers on file: 6166247-61 (Naval Sea Systems Command), 230830 (Microtech Inc Dba Microtech Inc), 6166247-61 (Microwave Engineering Corporation).
Key specifications for 6166247-61: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2. 29 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.
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.