The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-01-032-0446, 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 Frontgrade Technologies Inc.. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-032-0446 |
| Primary Part Number | 338087 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Document Type | MILITARY SPECIFICATION |
| Length | 1.875 INCHES NOMINAL IN |
| Flange Quantity | 2 |
| Flange Type | COVER |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL IN |
| Identification Designator | TYPEUG-51/U |
| Frequency Range Rating | +7.125 TO 8.400 GIGAHERTZ |
| Flange Connecting Hole Spacing | SPACED ON 0.676 IN. BY 0.737 IN. MOUNTING CENTERS IN |
| Document Identification | MIL-F-3922 |
| Flange Connection Facility Quantity | 4 |
| Width | 1.875 INCHES NOMINAL IN |
| 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 |
|---|---|
| 338087 | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 355-0454-430 | 5/2 Secondary reference U.S. Government activity |
| 355-0454-430 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 338087 | 5/9 Secondary reference Atlantic Microwave Corporation Div Cobham Electronic Systems |
| 338087 | 5/9 Secondary reference U.S. Government activity |
| I-2194L | 5/9 Secondary reference U.S. Government activity |
NSN 5985-01-032-0446 is a Isolator,radio Frequency Reflect, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-032-0446 has 1 manufacturer part number on file: 338087 (Frontgrade Technologies Inc.).
Key specifications for 338087: Overall Height: 1.875 INCHES NOMINAL IN; Document Type: MILITARY SPECIFICATION; Length: 1.875 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.
NSN 5985-01-032-0446 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.