The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-01-368-0144, 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 Sierra Microwave Technology, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-368-0144 |
| Primary Part Number | SM20227 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Sierra Microwave Technology, Llc |
| Status | ACTIVE |
| Connector Quantity | 2 |
| Frequency Range Rating | +4400.0 TO 7375.0 MEGAHERTZ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SM20227 | Sierra Microwave Technology, Llc (USA) |
| CT-4696-OT | Ute Microwave, Inc (USA) |
| 202307 | Ryt Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 210005-8 | 3/9 Design control — primary reference Boeing Company, the |
NSN 5985-01-368-0144 is a Isolator,radio Frequency Reflect, manufactured by Sierra Microwave Technology, Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-368-0144 has 3 manufacturer part numbers on file: SM20227 (Sierra Microwave Technology, Llc), CT-4696-OT (Ute Microwave, Inc), 202307 (Ryt Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 2920-01-388-2826. Verify interchangeability with system specifications before substitution.
Key specifications for SM20227: Overall Height: 1.550 INCHES NOMINAL IN; Overall Length: 2.010 INCHES NOMINAL IN; Overall Width: 0.688 INCHES NOMINAL IN; Connector Quantity: 2. 2 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.