The Waveguide Assembly, cataloged under National Stock Number 5985-00-868-4890, 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 Mega Industries Inc Mega Microwave Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-868-4890 |
| Primary Part Number | 45066 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Mega Industries Inc Mega Microwave Div |
| Status | ACTIVE |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.15 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Operating Pressure | 30.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Waveguide Length | 9.750 INCHES NOMINAL IN |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT INSIDE SURFACES |
| Precious Material and Location | WAVEGUIDE INTERNAL SURFACES SILVER |
| 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 |
|---|---|
| 45066 PRIMARY | Mega Industries Inc Mega Microwave Div (USA) |
| 128SCAV271-3 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128SCAV271-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 45066 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-868-4890 is a Waveguide Assembly, manufactured by Mega Industries Inc Mega Microwave Div, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-868-4890 has 2 manufacturer part numbers on file: 45066 (Mega Industries Inc Mega Microwave Div), 128SCAV271-3 (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-246-6053, 5310-01-526-5319. Verify interchangeability with system specifications before substitution.
Key specifications for 45066: Flange Quantity: 2; Precious Material: SILVER; Voltage Standing Wave Ratio: 1.15; Style Designator: OFFSET BEND TYPE. 9 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 5985-00-868-4890 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.