The Waveguide Assembly, cataloged under National Stock Number 5985-00-177-6258, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-177-6258 |
| Primary Part Number | 2665979-1 |
| 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 |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Waveguide Inside Height | 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 7.750 INCHES NOMINAL IN |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.250 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Waveguide Outside Height | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Waveguide Longer Offset Distance | 8.120 INCHES NOMINAL IN |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Waveguide Inside Width | 1.867 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Flange Inside Width | 1.867 INCHES MINIMUM AND 1.877 INCHES MAXIMUM ALL FLANGES IN |
| Thread Class | 2B ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Depth | 0.670 INCHES MINIMUM AND 0.770 INCHES MAXIMUM ALL FLANGES IN |
| Surface Treatment | OXIDE ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Flange Outside Height | 2.480 INCHES MINIMUM AND 2.520 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 3.480 INCHES MINIMUM AND 3.520 INCHES MAXIMUM ALL FLANGES IN |
| Flange Inside Height | 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM ALL FLANGES IN |
| Flange Style | CONTACT TYPE ALL FLANGES |
| Thread Direction | RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES |
| Insertion Loss in Decibels | 0.05 |
| Voltage Standing Wave Ratio | 1.06 |
| Waveguide Outside Width | 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | CORRUGATED SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Surface Treatment | COPPER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5985-00-177-6258 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 5985-00-177-6258 has 2 cross-referenced part numbers: 2665979-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 47484 (Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense).
There are 2 known substitutes for 5985-00-177-6258: 5330-00-599-1628, 3460-01-197-0404. Verify interchangeability with system specifications before substitution.
Key specifications for 2665979-1: Cross-Sectional Shape Style: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR; Waveguide Inside Height: 0.867 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN; Style Designator: BEND TYPE; Waveguide Offset Distance: 7.750 INCHES NOMINAL IN. 29 total characteristics are documented in the Federal Logistics Information System.