The Circulator,radio Frequency, cataloged under National Stock Number 5985-01-398-1175, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-398-1175 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Flange Quantity | 31 AND 1 |
| Flange Type | CHOKE AND COVERCHOKE |
| Identification Designator | UG-137B/U, UG-135U |
| Specification/standard Data | 20418-872099 MANUFACTURERS SOURCE CONTROL |
| Flange Connection Facility Quantity | 4 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 872099-4 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| MA8H62-S021 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-398-1175 is a Circulator,radio Frequency, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-398-1175: Flange Quantity: 31 AND 1; Flange Type: CHOKE AND COVERCHOKE; Overall Length: 11.288 INCHES MAXIMUM IN; Identification Designator: UG-137B/U, UG-135U. 5 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.