The Circulator,radio Frequency, cataloged under National Stock Number 5985-00-386-5693, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-386-5693 |
| Primary Part Number | 1CSL20 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Frequency Range Rating | +2.6 TO 2.9 GIGAHERTZ |
| 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 |
|---|---|
| MA7K804 | Semic Rf Electronic Gmbh (DEU) |
| 1CSL20 | Raytheon Company (USA) |
| 1CSL20 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 481451-2 | 5/9 Secondary reference Raytheon Company Div Corp |
| MA7K804 | 5/9 Secondary reference U.S. Government activity |
| 1CSL20 | 5/9 Secondary reference Raytheon Company Div Corp |
| MA7K804 | 5/9 Secondary reference American Microsemiconductor Inc |
| 481451-2 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5985-00-386-5693 is a Circulator,radio Frequency, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-386-5693 has 3 manufacturer part numbers on file: MA7K804 (Semic Rf Electronic Gmbh), 1CSL20 (Raytheon Company), 1CSL20 (Raytheon Company Dba Raytheon Co).
Key specifications for 1CSL20: Overall Length: 1.780 INCHES NOMINAL IN; Overall Width: 1.000 INCHES NOMINAL IN; Frequency Range Rating: +2.6 TO 2.9 GIGAHERTZ; End Item Identification: AN/TPN-19. 1 specification is 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 5985-00-386-5693 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.