The Circulator,radio Frequency, cataloged under National Stock Number 5985-01-075-1732, 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 Siemens Schweiz Ag Dba Siemens Switzerland Ltd.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-075-1732 |
| Primary Part Number | U177E9X2 |
| Item Name | Circulator,radio Frequency |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Siemens Schweiz Ag Dba Siemens Switzerland Ltd. |
| Status | ACTIVE |
| Frequency Range Rating | +12.4 TO 18.0 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 |
|---|---|
| U177E9X2 | Siemens Schweiz Ag Dba Siemens Switzerland Ltd. (CHE) |
| Reference | Meaning |
|---|---|
| MA-8K220 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-075-1732 is a Circulator,radio Frequency, manufactured by Siemens Schweiz Ag Dba Siemens Switzerland Ltd., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-075-1732 has 1 manufacturer part number on file: U177E9X2 (Siemens Schweiz Ag Dba Siemens Switzerland Ltd.).
Key specifications for U177E9X2: Frequency Range Rating: +12.4 TO 18.0 GIGAHERTZ; Special Features: PEAK POWER 1 KW MAX,AVERAGE POWER 20 WATT,ISOLATION 20 DB MIN,INSERTION LOSS 0.3 DB TYPICAL,MAX VSWR 1.20,1.500 IN. LG,1.500 IN. W,1.440 IN. H IN. 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 5985-01-075-1732 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.