The Waveguide Assembly, cataloged under National Stock Number 5985-01-005-6532, 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 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-005-6532 |
| Primary Part Number | 2575721 |
| 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 SEGMENT |
| Flange Inside Height | 0.450 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.06 |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 2.875 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Flange Inside Diameter | 1.220 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.625 INCHES NOMINAL ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.900 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL IN |
| Flange Depth | 0.438 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 1.625 INCHES NOMINAL ALL FLANGES IN |
| Insertion Loss in Decibels | 0.10 |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT ALL SURFACES |
| Surface Treatment | OXIDE FILM ALL FLANGE OUTSIDE SURFACES |
| Precious Material and Location | TUBING SURFACES SILVER |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Material | PLASTIC SINGLE TUBING JACKET |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CHOKE TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 4.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2575721 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| TS641413 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 116611 | 5/9 Secondary reference U.S. Government activity |
| 2575721 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-005-6532 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 5985-01-005-6532 has 2 manufacturer part numbers on file: 2575721 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), TS641413 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-128-9879. Verify interchangeability with system specifications before substitution.
Key specifications for 2575721: Tubing Wall Construction Style: INTERLOCKED SINGLE TUBING SEGMENT; Flange Inside Height: 0.450 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Precious Material: SILVER. 29 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 5985-01-005-6532 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.