The Waveguide Assembly, cataloged under National Stock Number 5985-01-500-6522, 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 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-500-6522 |
| Primary Part Number | RFG75-20-1A-1A-MSR |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.479 INCHES MINIMUM AND 0.481 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.15 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 0.854 INCHES MINIMUM AND 0.846 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Length | 19.880 INCHES MINIMUM AND 20.120 INCHES MAXIMUM IN |
| Specified Frequency | 10.0 GIGAHERTZ MINIMUM AND 15.0 GIGAHERTZ MAXIMUM |
| Waveguide Outside Height | 0.475 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.850 INCHES NOMINAL IN |
| Flange Depth | 0.376 INCHES MINIMUM AND 0.406 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.30 |
| Waveguide Inside Height | 0.375 INCHES NOMINAL IN |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | COVER TYPE ALL FLANGES |
| 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 |
|---|---|
| RFG75-20-1A-1A-MSR PRIMARY | Frontgrade Technologies Inc. (USA) |
| 241850-2 PRIMARY | Microtech Inc Dba Microtech Inc (USA) |
| AMC-FS-206-CO/CO-22A-MN PRIMARY | Advanced Microwave Components, Inc (USA) |
| Reference | Meaning |
|---|---|
| 2007844 | D/9 Drawing number reference only L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation |
| 2007844-002 | 7/2 Vendor item drawing reference L3harris Technologies, Inc. Dba Harris Div L3harris Technologies Inc Dba Harris Corporation |
NSN 5985-01-500-6522 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-500-6522 has 3 manufacturer part numbers on file: RFG75-20-1A-1A-MSR (Frontgrade Technologies Inc.), 241850-2 (Microtech Inc Dba Microtech Inc), AMC-FS-206-CO/CO-22A-MN (Advanced Microwave Components, Inc).
Key specifications for RFG75-20-1A-1A-MSR: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.479 INCHES MINIMUM AND 0.481 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.15. 22 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 5985-01-500-6522 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.