The Circulator,radio Frequency, cataloged under National Stock Number 5985-01-288-8863, 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 Ems Technologies Inc Div Defense & Space Systems. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-288-8863 |
| Primary Part Number | 245-3C-255.8-5% |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Ems Technologies Inc Div Defense & Space Systems |
| Status | ACTIVE |
| Connection Method | COAXIAL COUPLING |
| Overall Diameter | 4.630 INCHES NOMINAL IN |
| Connector Quantity | 3 |
| Frequency Range Rating | +200.0 TO 300.0 MEGAHERTZ |
| 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 |
|---|---|
| 245-3C-255.8-5% PRIMARY | Ems Technologies Inc Div Defense & Space Systems (USA) |
| Reference | Meaning |
|---|---|
| 3021-32158-40-2 | 5/9 Secondary reference Marconi Space Systems Ltd |
NSN 5985-01-288-8863 is a Circulator,radio Frequency, manufactured by Ems Technologies Inc Div Defense & Space Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-288-8863 has 1 manufacturer part number on file: 245-3C-255.8-5% (Ems Technologies Inc Div Defense & Space Systems).
Key specifications for 245-3C-255.8-5%: Connection Method: COAXIAL COUPLING; Overall Diameter: 4.630 INCHES NOMINAL IN; Overall Length: 1.500 INCHES NOMINAL IN; Connector Quantity: 3. 4 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 5985-01-288-8863 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.