The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-494-0577, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-494-0577 |
| Primary Part Number | 2835253 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Document Type | MILITARY SPECIFICATION |
| Flange Quantity | 1 |
| Flange Type | COVER |
| Flange Type | CHOKE |
| Identification Designator | TYPE UG-136B/U,TYPE UG-135/U |
| Frequency Range Rating | +8.5 TO 8.8 GIGAHERTZ |
| Document Identification | MIL-F-3922 |
| Flange Connection Facility Quantity | 4 |
| Flange Connecting Hole Thread Size | 8-32 |
| 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 |
|---|---|
| 2835253 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| X686LI | E and M Laboratories Div of Trak Microwave Corp (USA) |
| 2835253 | Pamtech Inc (USA) |
| I-1616L | Semic Rf Electronic Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| A3-X15218 | 5/9 Secondary reference Renaissance Electronics & Communications, Llc Dba Use CAGE Code 0rj02 for Cataloging |
| 2835253 | 5/9 Secondary reference Astro Microwave Inc |
| I-1616L | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-494-0577 is a Isolator,radio Frequency Reflect, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-494-0577 has 4 manufacturer part numbers on file: 2835253 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), X686LI (E and M Laboratories Div of Trak Microwave Corp), 2835253 (Pamtech Inc), I-1616L (Semic Rf Electronic Gmbh).
Key specifications for 2835253: Overall Height: 1.875 INCHES NOMINAL IN; Document Type: MILITARY SPECIFICATION; Flange Quantity: 1; Flange Type: COVER. 9 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.