The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-161-8044, 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 E and M Laboratories Div of Trak Microwave Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-161-8044 |
| Primary Part Number | X650L1J |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | E and M Laboratories Div of Trak Microwave Corp |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Document Type | MILITARY SPECIFICATION |
| Length | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| Flange Quantity | 2 |
| Flange Type | COVER |
| Identification Designator | UG-39/U |
| Frequency Range Rating | +9.0 TO 9.5 GIGAHERTZ |
| Flange Connecting Hole Spacing | SPACED ON 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 | 8.32 |
| Width | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM 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 |
|---|---|
| X650L1J | E and M Laboratories Div of Trak Microwave Corp (USA) |
| Reference | Meaning |
|---|---|
| SM-A-702263-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-161-8044 is a Isolator,radio Frequency Reflect, manufactured by E and M Laboratories Div of Trak Microwave Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-161-8044 has 1 manufacturer part number on file: X650L1J (E and M Laboratories Div of Trak Microwave Corp).
Key specifications for X650L1J: Overall Height: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Document Type: MILITARY SPECIFICATION; Length: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN. 12 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.