The Circulator,radio Frequency, cataloged under National Stock Number 5985-01-188-7228, 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 Naval Sea Systems Command. Government technical data includes 13 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-188-7228 |
| Primary Part Number | 5541976-1 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Document Type | MILITARY SPECIFICATION |
| Length | 1.372 INCHES NOMINAL IN |
| Flange Quantity | 3 |
| Connection Method | WAVEGUIDE FLANGE |
| Flange Type | CONTACT |
| Flange Connecting Hole Diameter | 0.190 INCHES NOMINAL IN |
| Identification Designator | TYPE UG-1357/U |
| Frequency Range Rating | +5.450 TO 5.825 GIGAHERTZ |
| Document Identification | MIL-F-3922 |
| Insertion Loss in Decibels | 0.2 |
| Flange Connection Facility Quantity | 8 |
| Flange Connecting Hole Thread Size | 10-32 |
| Width | 0.622 INCHES NOMINAL IN |
| 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 |
|---|---|
| CCH-141 | Raytheon Company (USA) |
| 5541976-1 PRIMARY | Naval Sea Systems Command (USA) |
| CCH-141 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 5541976-1 | 5/9 Secondary reference Astro Microwave Inc |
| CCH-141 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5985-01-188-7228 is a Circulator,radio Frequency, manufactured by Naval Sea Systems Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-188-7228 has 3 manufacturer part numbers on file: CCH-141 (Raytheon Company), 5541976-1 (Naval Sea Systems Command), CCH-141 (Raytheon Company Dba Raytheon Co).
Key specifications for 5541976-1: Overall Height: 2.250 INCHES MAXIMUM IN; Document Type: MILITARY SPECIFICATION; Length: 1.372 INCHES NOMINAL IN; Flange Quantity: 3. 13 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 5985-01-188-7228 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.