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Browse Federal Supply Groups and Classes Start By 3

30 Mechanical Power Transmission Equipment
3010 Torque Converters and Speed Changers	3020 Gears Pulleys Sprockets and Transmission Chain
3030 Belting Drive Belts Fan Belts and Accessories	3040 Miscellaneous Power Transmission Equipment
31 Bearings
3110 Bearings Antifriction Unmounted	3120 Bearings Plain Unmounted
3130 Bearings Mounted
32 Woodworking Machinery and Equipment
3210 Sawmill and Planing Mill Machine	3220 Woodworking Machines
3230 Tools and Attachments for Woodworking Machinery
34 Metalworking Machinery
3405 Saws and Filing Machines	3408 Machining Centers and Way-Type Machines
3410 Electrical and Ultrasonic Erosion Machines	3411 Boring Machines
3412 Broaching Machines	3413 Drilling and Tapping Machines
3414 Gear Cutting and Finishing Machines	3415 Grinding Machines
3417 Milling Machines	3419 Miscellaneous Machine Tools
3422 Rolling Mills and Drawing Machines	3424 Metal Heat Treating and Non-Thermal Treating Equipment
3426 Metal Finishing Equipment	3431 Electric Arc Welding Equipment
3432 Electric Resistance Welding Equipment	3433 Gas Welding Heat Cutting and Metalizing Equipment
3436 Welding Positioners and Manipulators	3438 Miscellaneous Welding Equipment
3439 Miscellaneous Welding Soldering and Brazing Supplies and Accessories	3441 Bending and Forming Machines
3442 Hydraulic and Pneumatic Presses Power Driven	3443 Mechanical Presses Power Driven
3444 Manual Presses	3445 Punching and Shearing Machines
3446 Forging Machinery and Hammers	3447 Wire and Metal Ribbon Forming Machines
3448 Riveting Machines	3449 Miscellaneous Secondary Metal Forming and Cutting Machines
3450 Machine Tools Portable	3455 Cutting Tools for Machine Tools
3456 Cutting and Forming Tools for Secondary Metalworking Machinery	3460 Machine Tool Accessories
3461 Accessories for Secondary Metalworking Machinery	3465 Production Jigs Fixtures and Template
3470 Machine Shop Sets Kits and Outfits
36 Special Industry Machinery
3605 Food Products Machinery and Equipment	3610 Printing Duplicating and Bookbind Equipment
3615 Pulp and Paper Industries Machinery	3620 Rubber and Plastics Working Machinery
3625 Textile Industries Machinery	3630 Clay and Concrete Products Industries Machinery
3635 Crystal and Glass Industries Machinery	3645 Leather Tanning and Leather Working Industries Machinery
3650 Chemical and Pharmaceutical Products Manufacturing Machinery	3655 Gas Generating and Dispensing Systems Fixed or Mobile
3660 Industrial Size Reduction Machinery	3670 Specialized Semiconductor Microcircuit and Printed Circuit Board Manufacturing Machinery
3680 Foundry Machinery Related Equipment and Supplies	3685 Specialized Metal Container Manufacturing Machinery and Related Equipment
3690 Specialized Ammunition and Ordnance Machinery and Related Equipment	3693 Industrial Assembly Machines
3694 Clean Work Stations Controlled Environment and Related Equipment	3695 Miscellaneous Special Industry Machinery
37 Agricultural Machinery and Equipment
3710 Soil Preparation Equipment	3720 Harvesting Equipment
3730 Dairy Poultry and Livestock Equipment	3740 Pest Disease and Frost Control Equipment
3750 Gardening Implements and Tools	3760 Animal Drawn Vehicle and Farm Trailer
3770 Saddlery Harness Whips and Related Animal Furnishings
38 Construction Mining Excavating and Highway Maintenance Equipment
3805 Earth Moving and Excavating Equipment	3810 Cranes and Crane Shovels
3815 Crane and Crane Shovel Attachments	3820 Mining Rock Drilling Earth Boring and Related Equipment
3825 Road Clearing Cleaning and Marking Equipment	3830 Truck and Tractor Attachments
3835 Petroleum Production and Distribution Equipment	3895 Miscellaneous Construction Equipment
39 Materials Handling Equipment
3910 Conveyors	3915 Materials Feeders
3920 Material Handling Equipment Nonself-Propelled	3930 Warehouse Trucks and Tractors Self-Propelled
3940 Blocks Tackle Rigging and Slings	3950 Winches Hoists Cranes and Derricks
3960 Freight Elevators	3990 Miscellaneous Materials Handling Equipment