The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-615-1446, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (CAGE 50027); E and M Laboratories Div of Trak Microwave Corp (CAGE 14135) |
| Parameter | Value |
|---|---|
| NSN | 5985-00-615-1446 |
| Primary Part Number | 9999-9501 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9999-9501 | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| S12T144 | E and M Laboratories Div of Trak Microwave Corp (USA) |
| Reference | Meaning |
|---|---|
| C0-331-2223 | 5/9 Secondary reference Astro Microwave Inc |
| 46991-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-00-615-1446 is a Isolator,radio Frequency Reflect, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-615-1446 has 2 manufacturer part numbers on file: 9999-9501 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), S12T144 (E and M Laboratories Div of Trak Microwave Corp).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-438-5440. Verify interchangeability with system specifications before substitution.
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 5985-00-615-1446 has DEMIL Code B. 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.