The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-233-7240, 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 Semic Rf Electronic Gmbh. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-233-7240 |
| Primary Part Number | A0743 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Semic Rf Electronic Gmbh |
| Status | ACTIVE |
| FSC Application Data | WAVEGUIDE ASSEMBLY |
| Document Type | MILITARY STANDARD |
| Length | 1.625 INCHES NOMINAL IN |
| Flange Quantity | 2 |
| Flange Type | CHOKE |
| Identification Designator | UG-40B/U |
| Flange Connecting Hole Spacing | 1.220 IN. BY 1.280 IN. MTG CENTERS IN |
| Document Identification | MIL-F-3922 |
| Flange Connection Facility Quantity | 4 |
| Flange Connecting Hole Thread Size | 8/0.164 IN./-32 IN |
| Width | 1.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| A0743 | Semic Rf Electronic Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| A0743 | 5/9 Secondary reference U.S. Government activity |
| A25A945-302-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-233-7240 is a Isolator,radio Frequency Reflect, manufactured by Semic Rf Electronic Gmbh, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-233-7240 has 1 manufacturer part number on file: A0743 (Semic Rf Electronic Gmbh).
Key specifications for A0743: FSC Application Data: WAVEGUIDE ASSEMBLY; Document Type: MILITARY STANDARD; Length: 1.625 INCHES NOMINAL IN; Flange Quantity: 2. 11 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.