The Waveguide Assembly, cataloged under National Stock Number 5985-01-005-6531, 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 30 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-005-6531 |
| Primary Part Number | 2534997 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Tubing Wall Construction Style | INTERLOCKED SINGLE TUBING SEGMENTINTERLOCKED SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL FIRST FLANGE0.400 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.505 INCHES NOMINAL SECOND FLANGE0.505 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 22 |
| Voltage Standing Wave Ratio | 1.061.06 |
| Bend Angle in Deg | 90.0 SINGLE BEND E-PLANE90.0 SINGLE BEND E-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 2.000 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 1.003 INCHES NOMINAL FIRST FLANGE1.003 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Inside Width | 0.900 INCHES NOMINAL0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULARINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.625 INCHES NOMINAL FIRST FLANGE1.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Height | 1.625 INCHES NOMINAL SECOND FLANGE1.625 INCHES NOMINAL SECOND FLANGE IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES0.169 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.900 INCHES NOMINAL FIRST FLANGE0.900 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Width | 1.003 INCHES NOMINAL SECOND FLANGE1.003 INCHES NOMINAL SECOND FLANGE IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIESRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.112 INCHES FIRST FLANGE ALL CONNECTION FACILITIES0.112 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL FIRST FLANGE0.438 INCHES NOMINAL FIRST FLANGE IN |
| Flange Depth | 0.438 INCHES NOMINAL SECOND FLANGE0.438 INCHES NOMINAL SECOND FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL FIRST FLANGE1.625 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 1.625 INCHES NOMINAL SECOND FLANGE1.625 INCHES NOMINAL SECOND FLANGE IN |
| Insertion Loss in Decibels | 0.100.10 |
| Surface Treatment | OXIDE FILM SINGLE TUBING SEGMENT ALL SURFACES |
| Waveguide Inside Height | 0.400 INCHES NOMINAL0.400 INCHES NOMINAL IN |
| Thread Class | 2B FIRST FLANGE ALL CONNECTION FACILITIES2B FIRST FLANGE ALL CONNECTION FACILITIES |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| 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 |
|---|---|
| 2534997 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2534997 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 110210 | 5/9 Secondary reference U.S. Government activity |
| 2534997 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-005-6531 is a Waveguide Assembly, 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 5985-01-005-6531 has 2 manufacturer part numbers on file: 2534997 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2534997 (Microwave Engineering Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 2930-01-194-0304, 5930-01-446-8884, 5980-01-471-6947. Verify interchangeability with system specifications before substitution.
Key specifications for 2534997: Tubing Wall Construction Style: INTERLOCKED SINGLE TUBING SEGMENTINTERLOCKED SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL FIRST FLANGE0.400 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.505 INCHES NOMINAL SECOND FLANGE0.505 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 22. 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.
NSN 5985-01-005-6531 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.