The Waveguide Assembly, cataloged under National Stock Number 5985-00-665-1056, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-665-1056 |
| Primary Part Number | 671571 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bend Angle in Deg | 45.0 ALL BENDS E-PLANE |
| Waveguide Inside Height | 0.497 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND ALL FLANGES SINGLE CONNECTION FACILITY |
| Waveguide Outside Height | 0.625 INCHES NOMINAL IN |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Style Designator | OFFSET BEND TYPE |
| Flange Style | CHOKE TYPE ALL FLANGES |
| Surface Treatment | CHROMATE ZINC AND ENAMEL ALL COUPLING INSIDE SURFACES |
| Flange Outside Height | 1.875 INCHES NOMINAL ALL FLANGES IN |
| Flange Inside Height | 0.497 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Length | 7.000 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE ZINC ALL TUBING SEGMENT OUTSIDE SURFACES |
| Waveguide Center to Center Distance | 10.312 INCHES NOMINAL IN |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Flange Depth | 0.625 INCHES NOMINAL ALL FLANGES IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES SINGLE CONNECTION FACILITY |
| Material | COPPER ALLOY ALL TUBING SEGMENT |
| Tubing Wall Construction Style | SEAMLESS ALL TUBING SEGMENT |
| Flange Outside Width | 1.875 INCHES NOMINAL ALL FLANGES IN |
| Thread Class | 2B ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Inside Width | 1.122 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Outside Width | 1.250 INCHES NOMINAL IN |
| FSC Application Data | MULTIAPPLICATION |
| Waveguide Inside Width | 1.122 INCHES NOMINAL IN |
| Flange Inside Diameter | 1.625 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B078783ISSUE3 | American Telephone and Telegraph Co (USA) |
| B078783 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| B078783ISSUE3 | At and T Corp (USA) |
| 671571 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| B078783 | American Telephone and Telegraph Co (USA) |
| B0-78783ISSUE3 | At and T Corp (USA) |
| B078783ISSUE3 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5985-00-665-1056 is a Waveguide Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-665-1056 has 7 cross-referenced part numbers: B078783ISSUE3 (American Telephone and Telegraph Co), B078783 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), B078783ISSUE3 (At and T Corp), 671571 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), B078783 (American Telephone and Telegraph Co) and 2 more.
There is 1 known substitute for 5985-00-665-1056: 6520-01-330-5105. Verify interchangeability with system specifications before substitution.
Key specifications for 671571: Bend Angle in Deg: 45.0 ALL BENDS E-PLANE; Waveguide Inside Height: 0.497 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND ALL FLANGES SINGLE CONNECTION FACILITY; Waveguide Outside Height: 0.625 INCHES NOMINAL IN. 28 total characteristics are documented in the Federal Logistics Information System.