The Waveguide Assembly, cataloged under National Stock Number 5985-00-134-1556, 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 Raytheon Company Dba Raytheon. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-134-1556 |
| Primary Part Number | 255985-2 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Raytheon Company Dba Raytheon |
| Status | ACTIVE |
| Waveguide Center to Center Distance | 7.250 INCHES NOMINAL IN |
| Flange Inside Diameter | 1.406 INCHES MINIMUM AND 1.437 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Waveguide Outside Width | 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Flange Outside Width | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Flange Depth | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN |
| Waveguide Leg Length | 3.950 INCHES MINIMUM AND 4.050 INCHES MAXIMUM IN |
| Flange Outside Height | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Material | RUBBER SINGLE TUBING JACKET |
| Voltage Standing Wave Ratio | 1.15 |
| Flange Quantity | 2 |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CHOKE TYPE ALL FLANGES |
| Surface Treatment | SILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES |
| Precious Material | SILVER |
| Precious Material and Location | FLANGE AND SURFACES SILVER |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Insertion Loss in Decibels | 0.20 |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Style Designator | U-BEND TYPE |
| Surface Treatment | CADMIUM ALL TUBING SEGMENT AND FLANGE ALL SURFACES |
| Thread Quantity Per Inch | 32 ALL FLANGES ALL CONNECTION FACILITIES |
| Waveguide Height | 18.730 INCHES NOMINAL IN |
| Flange Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5985-00-134-1556 is a Waveguide Assembly, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-134-1556 has 4 cross-referenced part numbers: 116485 (Litton Systems Inc Airtron Div), 255985-2 (Raytheon Company Dba Raytheon), XF1004-2 (3dbm Co Inc), TS645463 (Microwave Engineering Corporation).
There are 7 known substitutes for 5985-00-134-1556: 2590-00-136-4642, 4730-00-142-2572, 5950-00-167-1437 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 255985-2: Waveguide Center to Center Distance: 7.250 INCHES NOMINAL IN; Flange Inside Diameter: 1.406 INCHES MINIMUM AND 1.437 INCHES MAXIMUM ALL FLANGES IN; Flange Connecting Facility and Quantity: 4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES; Nominal Thread Size: 0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN. 30 total characteristics are documented in the Federal Logistics Information System.