The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-00-946-8980, 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 Raytheon Company Div Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-946-8980 |
| Primary Part Number | CKUM7 |
| Item Name | Isolator,radio Frequency Reflect |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Flange Quantity | 2 |
| Flange Type | CHOKE |
| Flange Connecting Hole Diameter | 0.144 INCHES NOMINAL IN |
| Frequency Range Rating | +16.6 TO 17.1 MEGAHERTZ |
| Flange Connection Facility Quantity | 8 |
| Flange Connecting Hole Thread Size | 6.32 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CKUM7 PRIMARY | Raytheon Company Div Corp (USA) |
| Reference | Meaning |
|---|---|
| 519988-1 | 1/2 Source control — Government-approved source U.S. Government activity |
| 336126 | 5/9 Secondary reference U.S. Government activity |
| KU125A | 5/9 Secondary reference Caswell Electronics Corp |
| KM1504 | 5/9 Secondary reference Microwave Products Inc Sub of Adams-Russel Co Inc |
NSN 5985-00-946-8980 is a Isolator,radio Frequency Reflect, manufactured by Raytheon Company Div Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-946-8980 has 1 manufacturer part number on file: CKUM7 (Raytheon Company Div Corp).
Key specifications for CKUM7: Overall Height: 2.834 INCHES NOMINAL IN; Flange Quantity: 2; Flange Type: CHOKE; Overall Length: 3.600 INCHES NOMINAL IN. 6 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 5985-00-946-8980 has DEMIL Code B. 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.