The Waveguide Assembly, cataloged under National Stock Number 5985-01-533-5679, 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 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-533-5679 |
| Primary Part Number | RFG137-3.00-16A-16A-HP |
| 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 | 0.622 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.10 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.372 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.940 INCHES NOMINAL ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.196 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.372 INCHES NOMINAL ALL FLANGES IN |
| Waveguide Length | 3.000 INCHES NOMINAL IN |
| Specified Frequency | 7.9 GIGAHERTZ MINIMUM AND 8.4 GIGAHERTZ MAXIMUM |
| Waveguide Outside Height | 0.758 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.508 INCHES NOMINAL IN |
| Flange Depth | 0.500 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 2.690 INCHES NOMINAL ALL FLANGES IN |
| Insertion Loss in Decibels | 0.05 |
| Waveguide Inside Height | 0.622 INCHES NOMINAL IN |
| Material | ALUMINUM ALL FLANGE |
| Material | BERYLLIUM SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE ALL FLANGES |
| 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 |
|---|---|
| 73137-137 | Microwave Development Company Inc Dba Microwave Development Company Inc (USA) |
| RFG137-3.00-16A-16A-HP PRIMARY | Frontgrade Technologies Inc. (USA) |
| SME-3193002-015 | Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp (USA) |
| Reference | Meaning |
|---|---|
| A3193002-015 | 7/2 Vendor item drawing reference U.S. Government activity |
| A3193002 | D/9 Drawing number reference only U.S. Government activity |
NSN 5985-01-533-5679 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-533-5679 has 3 manufacturer part numbers on file: 73137-137 (Microwave Development Company Inc Dba Microwave Development Company Inc), RFG137-3.00-16A-16A-HP (Frontgrade Technologies Inc.), SME-3193002-015 (Space Machine & Engineering Corp. Dba Space Machine & Engineering Corp).
Key specifications for RFG137-3.00-16A-16A-HP: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.622 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.10. 23 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 5985-01-533-5679 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.