The Waveguide Assembly, cataloged under National Stock Number 5985-00-417-4357, 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 Ward Leonard Ct Llc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-00-417-4357 |
| Primary Part Number | TR57651 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.395 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.400 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.395 INCHES NOMINAL THIRD FLANGE IN |
| Waveguide Width | 1.313 INCHES NOMINAL IN |
| Waveguide Height | 2.900 INCHES NOMINAL IN |
| Flange Quantity | 3 |
| Voltage Standing Wave Ratio | 1.15 |
| Style Designator | TEE, SHUNT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.622 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.210 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.313 INCHES NOMINAL THIRD FLANGE IN |
| Flange Connecting Hole Diameter | 0.144 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Connecting Hole Diameter | 0.120 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Connecting Hole Diameter | 0.144 INCHES NOMINAL THIRD FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.700 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.706 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 0.706 INCHES NOMINAL THIRD FLANGE IN |
| Waveguide Length | 4.000 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.391 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.702 INCHES NOMINAL IN |
| Flange Outside Width | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 0.855 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.313 INCHES NOMINAL THIRD FLANGE IN |
| Waveguide Inside Height | 0.311 INCHES NOMINAL IN |
| Material | COPPER ALLOY ALL TUBING SEGMENT AND FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TR57651 PRIMARY | Ward Leonard Ct Llc (USA) |
| G128-309-001 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| TR57651 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| TR57651 | 5/9 Secondary reference Ward Leonard Ct Llc |
| G128-309-001 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-417-4357 is a Waveguide Assembly, manufactured by Ward Leonard Ct Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-417-4357 has 3 manufacturer part numbers on file: TR57651 (Ward Leonard Ct Llc), G128-309-001 (Bae Systems Information and Electronic Systems Integration Inc.), TR57651 (Microwave Engineering Corporation).
Key specifications for TR57651: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.395 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.400 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.395 INCHES NOMINAL THIRD FLANGE IN. 29 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 5985-00-417-4357 has DEMIL Code B. 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.