The Circulator,radio Frequency, cataloged under National Stock Number 5985-00-488-2051, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-488-2051 |
| Primary Part Number | XL9 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| 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 |
|---|---|
| XL9 | Raytheon Company (USA) |
| XL9 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 399194-2 | 5/9 Secondary reference Raytheon Company Div Corp |
| XL9 | 5/9 Secondary reference Raytheon Company Div Corp |
| 399194-2 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5985-00-488-2051 is a Circulator,radio Frequency, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-488-2051 has 2 manufacturer part numbers on file: XL9 (Raytheon Company), XL9 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-118-9968. Verify interchangeability with system specifications before substitution.
Key specifications for XL9: Overall Height: 1.405 INCHES NOMINAL IN; Overall Length: 2.940 INCHES NOMINAL IN; Overall Width: 1.960 INCHES NOMINAL IN; End Item Identification: AN/TPN-19. 0 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.