The Waveguide Assembly, cataloged under National Stock Number 5985-00-911-1607, 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 Microwave Engineering Corporation. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-911-1607 |
| Primary Part Number | TR78249 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flange Inside Height | 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Height | 0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Quantity | 2 |
| Waveguide Inside Width | 1.872 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Inside Width | 2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Inside Width | 1.868 INCHES MINIMUM AND 1.876 INCHES MAXIMUM FIRST FLANGE IN |
| Waveguide Outside Height | 1.000 INCHES NOMINAL IN |
| Waveguide Outside Width | 2.000 INCHES NOMINAL IN |
| Flange Depth | 0.922 INCHES MINIMUM AND 0.953 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SECOND FLANGE IN |
| Waveguide Inside Height | 0.872 INCHES NOMINAL IN |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY |
| Flange Outside Diameter | 3.610 INCHES MINIMUM FIRST FLANGE IN |
| Flange Outside Diameter | 3.610 INCHES MINIMUM THIRD FLANGE IN |
| Flange Outside Diameter | 3.640 INCHES MAXIMUM FOURTH FLANGE IN |
| Flange Outside Diameter | 3.640 INCHES MAXIMUM SECOND FLANGE IN |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Flange Style | COVER TYPE SECOND FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TR78249 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| AW82357-3 | 5/9 Secondary reference Lct Electronics |
NSN 5985-00-911-1607 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-911-1607 has 1 manufacturer part number on file: TR78249 (Microwave Engineering Corporation).
Key specifications for TR78249: Flange Inside Height: 1.002 INCHES MINIMUM AND 1.005 INCHES MAXIMUM SECOND FLANGE IN; Flange Inside Height: 0.868 INCHES MINIMUM AND 0.876 INCHES MAXIMUM FIRST FLANGE IN; Flange Quantity: 2; Waveguide Inside Width: 1.872 INCHES NOMINAL IN. 20 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 5985-00-911-1607 has DEMIL Code D. 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.