The Waveguide Assembly, cataloged under National Stock Number 5985-01-331-7014, 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 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-01-331-7014 |
| Primary Part Number | 125486-3 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIPMENT |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.20 |
| Style Designator | STRAIGHT TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.087 INCHES MINIMUM AND 1.093 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.096 INCHES MINIMUM ALL FLANGES FIRST CONNECTION FACILITY IN |
| Flange Connecting Hole Diameter | 0.145 INCHES MINIMUM SECOND FLANGE SECOND CONNECTION FACILITY IN |
| Flange Inside Width | 0.688 INCHES MINIMUM AND 0.694 INCHES MAXIMUM ALL FLANGES IN |
| Thread Direction | RIGHT-HAND FIRST FLANGE SECOND CONNECTION FACILITY |
| Waveguide Length | 1.900 INCHES MINIMUM AND 2.100 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.138 INCHES FIRST FLANGE SECOND CONNECTION FACILITY IN |
| Waveguide Outside Height | 0.603 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Waveguide Outside Width | 1.187 INCHES MINIMUM AND 1.193 INCHES MAXIMUM IN |
| Flange Depth | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM ALL FLANGES IN |
| Surface Treatment | CHROMATE ALL TUBING SEGMENT AND FLANGE ALL SURFACES |
| Waveguide Inside Height | 0.503 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN |
| Thread Class | 2B FIRST FLANGE SECOND CONNECTION FACILITY |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 2 UNTHREADED HOLE(S) ALL FLANGES FIRST CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) SECOND FLANGE SECOND CONNECTION FACILITY |
| Flange Connecting Facility and Quantity | 4 THREADED HOLE(S) FIRST FLANGE SECOND CONNECTION FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FIRST FLANGE SECOND CONNECTION FACILITY |
| Flange Style | CONTACT, DOUBLE RIDGE 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 |
|---|---|
| 125486-3 | Frontgrade Technologies Inc. (USA) |
| TDR14785-1 | Microwave Engineering Corporation (USA) |
| 750-112-2 | 3dbm Co Inc Waveguide Group (USA) |
| Reference | Meaning |
|---|---|
| 125486-3 | 5/9 Secondary reference U.S. Government activity |
| 4245416-007 | 3/9 Design control — primary reference Ail Systems Inc Sub of Eaton Corp |
NSN 5985-01-331-7014 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-331-7014 has 3 manufacturer part numbers on file: 125486-3 (Frontgrade Technologies Inc.), TDR14785-1 (Microwave Engineering Corporation), 750-112-2 (3dbm Co Inc Waveguide Group).
Key specifications for 125486-3: FSC Application Data: RADAR EQUIPMENT; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.318 INCHES MINIMUM AND 0.324 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2. 29 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 5985-01-331-7014 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.