The Waveguide Assembly, cataloged under National Stock Number 5985-01-210-5775, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-210-5775 |
| Primary Part Number | 3271357-2 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Tubing Wall Construction Style | CORRUGATED SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.497 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 4.000 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.122 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 2.255 INCHES MINIMUM AND 2.245 INCHES MAXIMUM ALL FLANGES IN |
| Flange Inside Width | 1.122 INCHES NOMINAL ALL FLANGES IN |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Depth | 0.250 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 2.182 INCHES MINIMUM AND 2.192 INCHES MAXIMUM ALL FLANGES IN |
| Surface Treatment | OXIDE FILM SINGLE TUBING SEGMENT ALL SURFACES |
| Waveguide Inside Height | 0.497 INCHES NOMINAL IN |
| Thread Class | 2B ALL FLANGES ALL CONNECTION FACILITIES |
| Thread Quantity Per Inch | 32 ALL FLANGES ALL CONNECTION FACILITIES |
| Material | BERYLLIUM ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 6.880 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 |
|---|---|
| 235653 | Microtech Inc Dba Microtech Inc (USA) |
| 3271357-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 3271357-2 | 5/9 Secondary reference Astro Microwave Inc |
| TS685190 | 5/9 Secondary reference Microwave Engineering Corporation |
NSN 5985-01-210-5775 is a Waveguide Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-210-5775 has 2 manufacturer part numbers on file: 235653 (Microtech Inc Dba Microtech Inc), 3271357-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3271357-2: Tubing Wall Construction Style: CORRUGATED SINGLE TUBING SEGMENT; Flange Inside Height: 0.497 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Style Designator: BEND TYPE. 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 5985-01-210-5775 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.