The Waveguide Assembly, cataloged under National Stock Number 5985-00-168-9453, 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 Waveline Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-168-9453 |
| Primary Part Number | 50188A |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Waveline Inc |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.122 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.875 INCHES NOMINAL FIRST FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.250 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Length | 5.937 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.625 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.250 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.875 INCHES NOMINAL FIRST FLANGE IN |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT INSIDE SURFACES |
| Precious Material and Location | TUBING INSIDESURFACES SILVER |
| Waveguide Inside Height | 0.497 INCHES NOMINAL IN |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Style | COVER TYPE FIRST 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 |
|---|---|
| 50188A | Waveline Inc (USA) |
| Reference | Meaning |
|---|---|
| CG-3674/U(5.937IN.) | 3/2 Design control — primary reference U.S. Government activity |
| 5088A | 5/9 Secondary reference Waveline Inc |
NSN 5985-00-168-9453 is a Waveguide Assembly, manufactured by Waveline Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-168-9453 has 1 manufacturer part number on file: 50188A (Waveline Inc).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-889-3345. Verify interchangeability with system specifications before substitution.
Key specifications for 50188A: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.625 INCHES NOMINAL FIRST FLANGE IN; Flange Quantity: 2; Precious Material: SILVER. 22 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 5985-00-168-9453 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.