The Circulator,radio Frequency, cataloged under National Stock Number 5985-01-291-2075, 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. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-291-2075 |
| Primary Part Number | CSH181 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| 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 |
|---|---|
| CSH181 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| CSH181 | 5/9 Secondary reference Raytheon Company Div Corp |
| 5538061-1 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| CSH181 | 5/9 Secondary reference Raytheon Company Dba Raytheon Co |
NSN 5985-01-291-2075 is a Circulator,radio Frequency, manufactured by Raytheon Company, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-291-2075 has 1 manufacturer part number on file: CSH181 (Raytheon Company).
Key specifications for CSH181: End Item Identification: AMPLIFIER,RF,AM-7158/SPY-18. 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.
NSN 5985-01-291-2075 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.