The Waveguide Assembly, cataloged under National Stock Number 5985-00-034-3960, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-034-3960 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.311 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.311 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Height | 0.394 INCHES NOMINAL THIRD FLANGE IN |
| Waveguide Height | 2.500 INCHES NOMINAL IN |
| Flange Quantity | 3 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.50 |
| Bend Angle in Deg | 90.0 ALL BENDS E-PLANE |
| Style Designator | TEE, SERIES TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.312 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.312 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Height | 1.313 INCHES NOMINAL THIRD FLANGE IN |
| Flange Connecting Hole Diameter | 0.144 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.622 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 0.622 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 0.705 INCHES NOMINAL THIRD FLANGE IN |
| Thread Direction | RIGHT-HAND SECOND FLANGE ALL CONNECTION FACILITIES |
| Thread Direction | RIGHT-HAND THIRD FLANGE ALL CONNECTION FACILITIES |
| Waveguide Length | 6.068 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Nominal Thread Size | 0.138 INCHES THIRD FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 1.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.500 INCHES NOMINAL IN |
| Flange Depth | 0.375 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.375 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.313 INCHES NOMINAL THIRD FLANGE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| P2252 | 5/9 Secondary reference Mcs Corporation |
| 21736 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| C995169002 | 3/9 Design control — primary reference Systron-Donner Corp Microwave/instrument Div |
NSN 5985-00-034-3960 is a Waveguide Assembly, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 1660-00-869-9340, 3020-00-905-2009, 5325-00-937-8301. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-00-034-3960: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.311 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.311 INCHES NOMINAL SECOND FLANGE IN; Flange Inside Height: 0.394 INCHES NOMINAL THIRD FLANGE IN. 30 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.
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.