The Waveguide Assembly, cataloged under National Stock Number 5985-01-346-7567, 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 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-346-7567 |
| Primary Part Number | RFG90-21-1A-1A |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Tubing Wall Construction Style | CONVOLUTE SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Style Designator | FIVE BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 45.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Surface Treatment | SILVER SINGLE TUBING SEGMENT OUTSIDE SURFACES |
| Precious Material and Location | TUBING SEGMENT ALL SURFACES SILVER |
| Material | COPPER ALLOY SINGLE TUBING SEGMENT |
| 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 |
|---|---|
| RFG90-21-1A-1A PRIMARY | Frontgrade Technologies Inc. (USA) |
NSN 5985-01-346-7567 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-346-7567 has 1 manufacturer part number on file: RFG90-21-1A-1A (Frontgrade Technologies Inc.).
Key specifications for RFG90-21-1A-1A: Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENT; Flange Quantity: 2; Precious Material: SILVER; Style Designator: FIVE BEND TYPE. 10 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.