The Adapter,waveguide, cataloged under National Stock Number 5985-00-908-0425, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-908-0425 |
| Item Name | Adapter,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.791 INCHES MINIMUM AND 0.799 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Quantity | 1 |
| Voltage Standing Wave Ratio | 1.25 |
| Adapter Overall Width | 3.190 INCHES NOMINAL IN |
| Style Designator | WAVEGUIDE TO COAXIAL |
| Waveguide Inside Width | 1.585 INCHES MINIMUM AND 1.595 INCHES MAXIMUM IN |
| Connector End Design | FEMALE |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 2.420 INCHES MINIMUM AND 2.460 INCHES MAXIMUM SINGLE FLANGE IN |
| Adapter Overall Height | 3.188 INCHES NOMINAL IN |
| Adapter Length | 3.500 INCHES NOMINAL IN |
| Flange Connecting Hole Diameter | 0.795 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.586 INCHES MINIMUM AND 1.594 INCHES MAXIMUM SINGLE FLANGE IN |
| Waveguide Outside Height | 0.918 INCHES MINIMUM AND 0.928 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.713 INCHES MINIMUM AND 1.723 INCHES MINIMUM IN |
| Flange Depth | 0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Outside Width | 3.170 INCHES MINIMUM AND 3.210 INCHES MAXIMUM SINGLE FLANGE IN |
| Waveguide Inside Height | 0.790 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN |
| Adapter Height | 2.440 INCHES NOMINAL IN |
| Material | COPPER SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE SINGLE FLANGE |
| Coaxial Connector Series Designation | N |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| UG1679U | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-DTL-22641/16 | 4/1 Identification reference U.S. Government activity |
| M22641/16-19 | 2/2 Government specification standardization U.S. Government activity |
| MILA22641-16 | 5/9 Secondary reference U.S. Government activity |
| RE49C830 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5985-00-908-0425 is a Adapter,waveguide, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5985-00-952-3661, 5985-01-067-4628, 5985-01-420-9775. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-908-0425: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.791 INCHES MINIMUM AND 0.799 INCHES MAXIMUM SINGLE FLANGE IN; Flange Quantity: 1; Voltage Standing Wave Ratio: 1.25. 24 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 5985-00-908-0425 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.