The Waveguide Assembly, cataloged under National Stock Number 5985-00-231-9598, 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 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-231-9598 |
| Primary Part Number | TR57840 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flange Inside Height | 0.311 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.394 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Waveguide Inside Width | 0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.622 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.705 INCHES NOMINAL SECOND FLANGE IN |
| Waveguide Outside Width | 0.699 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN |
| Flange Depth | 0.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.375 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.313 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Height | 0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Material | ALUMINUM ALL FLANGE |
| 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 |
|---|---|
| 123SCAV5612-5 | Northrop Grumman Systems Corporation (USA) |
| TR57840 PRIMARY | Microwave Engineering Corporation (USA) |
NSN 5985-00-231-9598 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-231-9598 has 2 manufacturer part numbers on file: 123SCAV5612-5 (Northrop Grumman Systems Corporation), TR57840 (Microwave Engineering Corporation).
Key specifications for TR57840: Flange Inside Height: 0.311 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.394 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2; Waveguide Inside Width: 0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN. 18 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 5985-00-231-9598 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.