The Waveguide Assembly, cataloged under National Stock Number 5985-00-946-6793, 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 Microwave Engineering Corporation. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-946-6793 |
| Primary Part Number | TRE-57-4-B-L2.0M2.0-90DEGSILVER |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Waveguide Longer Offset Distance | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Surface Treatment | SILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Outside Height | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 0.611 INCHES NOMINAL FIRST FLANGE IN |
| Thread Class | 2B SECOND FLANGE ALL CONNECTION FACILITIES |
| Bend Angle in Deg | 90.0 SINGLE BEND E-PLANE |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES |
| Waveguide Inside Height | 0.311 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.391 INCHES NOMINAL IN |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Outside Width | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FIRST FLANGE ALL CONNECTION FACILITIES |
| Precious Material | SILVER |
| Flange Inside Height | 0.311 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Style Designator | BEND TYPE |
| Flange Style | COVER TYPE SECOND FLANGE |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Surface Treatment | PAINT AND CHROMATE ZINC ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Precious Material and Location | TUBING INSIDE SURFACE SILVER |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.394 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Outside Width | 0.702 INCHES NOMINAL IN |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIP. |
| Waveguide Offset Distance | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Flange Inside Width | 0.705 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Inside Width | 0.622 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SECOND FLANGE ALL CONNECTION FACILITIES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| TRE-57-4-B-L2.0M2.0-90DEGSILVER | Microwave Engineering Corporation (USA) |
| B90E0003 | Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co (USA) |
| 109303 | Litton Systems Inc Airtron Div (USA) |
NSN 5985-00-946-6793 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-946-6793 has 3 cross-referenced part numbers: TRE-57-4-B-L2.0M2.0-90DEGSILVER (Microwave Engineering Corporation), B90E0003 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co), 109303 (Litton Systems Inc Airtron Div).
There are 3 known substitutes for 5985-00-946-6793: 3110-00-100-0501, 6625-00-727-4738, 5826-01-059-6037. Verify interchangeability with system specifications before substitution.
Key specifications for TRE-57-4-B-L2.0M2.0-90DEGSILVER: Waveguide Longer Offset Distance: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN; Surface Treatment: SILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES; Material: COPPER ALLOY ALL TUBING SEGMENT AND FLANGE; Flange Outside Height: 1.312 INCHES NOMINAL FIRST FLANGE IN. 30 total characteristics are documented in the Federal Logistics Information System.