The Waveguide Assembly, cataloged under National Stock Number 5985-01-021-6995, 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 Aimtron Systems, Llc. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-021-6995 |
| Primary Part Number | 402287 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.10 |
| Bend Angle in Deg | 90.0 FIRST BEND E-PLANE |
| Bend Angle in Deg | 90.0 SECOND BEND H-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 7.890 INCHES MINIMUM AND 8.010 INCHES MAXIMUM IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, ROUND EXTERNAL, RECTANGULAR |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Insertion Loss in Decibels | 0.10 |
| Surface Treatment | CADMIUM SINGLE FLANGE OUTSIDE SURFACES |
| Precious Material and Location | OVERALL SURFACES SILVER |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Material | COPPER SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Waveguide Longer Offset Distance | 8.280 INCHES MINIMUM AND 8.400 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 233318 | Microtech Inc Dba Microtech Inc (USA) |
| 402287 PRIMARY | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 402287 | 5/9 Secondary reference Cardion Inc |
| 5985PL0981898 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 402287 | 5/9 Secondary reference Microtech Inc Dba Microtech Inc |
| TS685156 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-021-6995 is a Waveguide Assembly, manufactured by Aimtron Systems, Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-021-6995 has 2 manufacturer part numbers on file: 233318 (Microtech Inc Dba Microtech Inc), 402287 (Aimtron Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-091-3277. Verify interchangeability with system specifications before substitution.
Key specifications for 402287: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Quantity: 2; Precious Material: SILVER. 19 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 5985-01-021-6995 has DEMIL Code Q. 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.