The Adapter,waveguide, cataloged under National Stock Number 5985-01-180-5448, 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 16 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-180-5448 |
| Primary Part Number | R40-333 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.313 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Adapter Overall Width | 1.375 INCHES NOMINAL IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.375 INCHES NOMINAL SINGLE FLANGE IN |
| Adapter Overall Height | 1.563 INCHES NOMINAL IN |
| Adapter Length | 1.219 INCHES NOMINAL IN |
| Flange Inside Width | 0.687 INCHES NOMINAL SINGLE FLANGE IN |
| Nominal Thread Size | 0.125 INCHES SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Outside Width | 1.375 INCHES NOMINAL SINGLE FLANGE IN |
| Adapter Height | 1.375 INCHES NOMINAL IN |
| Flange Connecting Facility and Quantity | 4 CAPTIVE SCREW(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE SINGLE 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 |
|---|---|
| R40-333 PRIMARY | Microwave Engineering Corporation (USA) |
NSN 5985-01-180-5448 is a Adapter,waveguide, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-180-5448 has 1 manufacturer part number on file: R40-333 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-366-5200. Verify interchangeability with system specifications before substitution.
Key specifications for R40-333: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.313 INCHES NOMINAL SINGLE FLANGE IN; Flange Quantity: 1; Adapter Overall Width: 1.375 INCHES NOMINAL IN. 16 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 5985-01-180-5448 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.