The Adapter,waveguide, cataloged under National Stock Number 5985-01-099-2661, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 23 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-099-2661 |
| Primary Part Number | 3141542-1 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Inside Height | 0.872 INCHES NOMINAL FIRST FLANGE0.872 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.872 INCHES NOMINAL SECOND FLANGE0.872 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 22 |
| Style Designator | WAVEGUIDE TO WAVEGUIDEWAVEGUIDE TO WAVEGUIDE |
| Waveguide Inside Width | 1.872 INCHES NOMINAL1.872 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 2.500 INCHES NOMINAL FIRST FLANGE2.500 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 2.500 INCHES NOMINAL SECOND FLANGE2.500 INCHES NOMINAL SECOND FLANGE IN |
| Adapter Length | 1.850 INCHES NOMINAL1.850 INCHES NOMINAL IN |
| Flange Connecting Hole Diameter | 0.259 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES0.259 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.872 INCHES NOMINAL FIRST FLANGE1.872 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.872 INCHES NOMINAL SECOND FLANGE1.872 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.281 INCHES NOMINAL SECOND FLANGE0.281 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.290 INCHES NOMINAL FIRST FLANGE0.290 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 3.500 INCHES NOMINAL FIRST FLANGE3.500 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 3.500 INCHES NOMINAL SECOND FLANGE3.500 INCHES NOMINAL SECOND FLANGE IN |
| Surface Treatment | CHROMATE SINGLE TUBING SEGMENT OUTSIDE SURFACESCHROMATE SINGLE TUBING SEGMENT OUTSIDE SURFACES |
| Waveguide Inside Height | 0.872 INCHES NOMINAL0.872 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY SINGLE TUBING SEGMENT |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE FIRST FLANGECONTACT TYPE FIRST FLANGE |
| Flange Style | CONTACT TYPE SECOND FLANGECONTACT TYPE SECOND FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3141542-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5985-01-099-2661 is a Adapter,waveguide, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-099-2661 has 1 manufacturer part number on file: 3141542-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3141542-1: Flange Inside Height: 0.872 INCHES NOMINAL FIRST FLANGE0.872 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.872 INCHES NOMINAL SECOND FLANGE0.872 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 22; Style Designator: WAVEGUIDE TO WAVEGUIDEWAVEGUIDE TO WAVEGUIDE. 23 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 5985-01-099-2661 has DEMIL Code Q. 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.