A National Stock Number (NSN) is the 13-digit number the U.S. government and NATO use to identify an item of supply: a 4-digit Federal Supply Class (FSC) followed by the 9-digit National Item Identification Number (NIIN), written 2945-01-543-0527. Aviation Parts Executive lists 17,891 parts whose manufacturer part numbers carry an NSN. Type an NSN or NIIN in the box below or in our site search to open the part, or browse the classes.

Browse By Federal Supply Class

17,890 of our listed parts carry a National Stock Number. Each class page lists them with their NSN, item name and manufacturer.

Group 15: Aerospace Craft and Structural Components

1560 Airframe Structural Components (694)

Group 16: Aerospace Craft Components and Accessories

1610 Aircraft Propellers and Components (61) · 1615 Helicopter Rotor Blades, Drive Mechanisms and Components (6) · 1620 Aircraft Landing Gear Components (37) · 1630 Aircraft Wheel and Brake Systems (230) · 1640 Aircraft Control Cable Products (14) · 1650 Aircraft Hydraulic, Vacuum, and De-Icing System Components (73) · 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment (34) · 1680 Miscellaneous Aircraft Accessories and Components (156)

Group 17: Aerospace Craft Launching, Landing, Ground Handling, and Servicing Equipment

1730 Aircraft Ground Servicing Equipment (31)

Group 42: Firefighting, Rescue, and Safety Equipment; and Environmental Protection Equipment and Materials

4210 Firefighting Equipment (8)

Group 43: Pumps and Compressors

4310 Compressors and Vacuum Pumps (10) · 4320 Power and Hand Pumps (29) · 4330 Centrifugals, Separators, and Pressure and Vacuum Filters (23)

Group 47: Pipe, Tubing, Hose, and Fittings

4710 Pipe, Tube and Rigid Tubing (285) · 4720 Hose and Flexible Tubing (216) · 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings (612)

Group 48: Valves

4810 Valves, Powered (32) · 4820 Valves, Nonpowered (141)

Group 49: Maintenance and Repair Shop Equipment

4920 Aircraft Maintenance and Repair Shop Specialized Equipment (24) · 4930 Lubrication and Fuel Dispensing Equipment (12) · 4940 Miscellaneous Maintenance and Repair Shop Specialized Equipment (3)

Group 51: Hand Tools

5110 Hand Tools, Edged, Nonpowered (5) · 5120 Hand Tools, Nonedged, Nonpowered (58) · 5180 Sets, Kits, and Outfits of Hand Tools (5)

Group 52: Measuring Tools

5210 Measuring Tools, Craftsmen's (5) · 5220 Inspection Gages and Precision Layout Tools (7)

Group 53: Hardware and Abrasives

5305 Screws (1,554) · 5306 Bolts (2,057) · 5307 Studs (399) · 5310 Nuts and Washers (1,592) · 5315 Nails, Machine Keys, and Pins (664) · 5320 Rivets (460) · 5325 Fastening Devices (593) · 5330 Packing and Gasket Materials (736) · 5331 O-Ring (865) · 5340 Hardware, Commercial (1,004) · 5342 Hardware, Weapon System (67) · 5355 Knobs and Pointers (21) · 5360 Coil, Flat, Leaf, and Wire Springs (124) · 5365 Bushings, Rings, Shims, and Spacers (612)

Group 56: Construction and Building Materials

5630 Pipe and Conduit, Nonmetallic (4) · 5640 Wallboard, Building Paper, and Thermal Insulation Materials (3)

Group 58: Communication, Detection, and Coherent Radiation Equipment

5820 Radio and Television Communication Equipment, Except Airborne (10) · 5821 Radio and Television Communication Equipment, Airborne (20) · 5825 Radio Navigation Equipment, Except Airborne (5) · 5826 Radio Navigation Equipment, Airborne (30) · 5841 Radar Equipment, Airborne (15) · 5895 Miscellaneous Communication Equipment (43)

Group 59: Electrical and Electronic Equipment Components

5905 Resistor (33) · 5910 Capacitors (11) · 5915 Filters and Networks (8) · 5920 Fuses, Arrestors, Absorbers, and Protectors (26) · 5925 Circuit Breakers (31) · 5930 Switches (132) · 5935 Connectors, Electrical (320) · 5940 Lugs, Terminals, and Terminal Strips (64) · 5945 Relays and Solenoids (74) · 5950 Coils and Transformers (3) · 5961 Semiconductor Devices and Associated Hardware (12) · 5962 Microcircuits, Electronic (4) · 5965 Headsets, Handsets, Microphones and Speakers (148) · 5970 Electrical Insulators and Insulating Materials (68) · 5975 Electrical Hardware and Supplies (64) · 5977 Electrical Contact Brushes and Electrodes (31) · 5980 Optoelectronic Devices and Associated Hardware (3) · 5985 Antennas, Waveguides, and Related Equipment (91) · 5995 Cable, Cord, and Wire Assemblies: Communication Equipment (59) · 5996 Amplifiers (3) · 5998 Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware (40) · 5999 Miscellaneous Electrical and Electronic Components (63)

Group 61: Electric Wire, and Power and Distribution Equipment

6105 Motors, Electrical (9) · 6110 Electrical Control Equipment (13) · 6115 Generators and Generator Sets, Electrical (9) · 6130 Converters, Electrical, Nonrotating (19) · 6135 Batteries, Nonrechargeable (7) · 6140 Batteries, Rechargeable (52) · 6145 Wire and Cable, Electrical (116) · 6150 Miscellaneous Electric Power and Distribution Equipment (93) · 6160 Miscellaneous Battery Retaining Fixtures, Liners and Ancillary Items (9)

Group 62: Lighting Fixtures and Lamps

6210 Indoor and Outdoor Electric Lighting Fixtures (32) · 6220 Electric Vehicular Lights and Fixtures (57) · 6240 Electric Lamps (28)

Group 63: Alarm, Signal and Security Detection Systems

6340 Aircraft Alarm and Signal Systems (8) · 6350 Miscellaneous Alarm, Signal, and Security Detection Systems (6)

Group 66: Instruments and Laboratory Equipment

6605 Navigational Instruments (8) · 6610 Flight Instruments (42) · 6615 Automatic Pilot Mechanisms and Airborne Gyro Components (10) · 6620 Engine Instruments (12) · 6625 Electrical and Electronic Properties Measuring and Testing Instruments (27) · 6645 Time Measuring Instruments (6) · 6660 Meteorological Instruments and Apparatus (4) · 6670 Scales and Balances (5) · 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (28) · 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments (37) · 6695 Combination and Miscellaneous Instruments (17)

Group 68: Chemicals and Chemical Products

6850 Miscellaneous Chemical Specialties (6)

Group 70: Information Technology Equipment (including Firmware), Software, Supplies and Support Equipment

7025 Information Technology Input/output and Storage Devices (7) · 7030 Information Technology Software (3)

Group 75: Office Supplies and Devices

7510 Office Supplies (13)

Group 76: Books, Maps, and Other Publications

7690 Miscellaneous Printed Matter (13)

Group 79: Cleaning Equipment and Supplies

7920 Brooms, Brushes, Mops, and Sponges (4)

Group 80: Brushes, Paints, Sealers, and Adhesives

8010 Paints, Dopes, Varnishes, and Related Products (8) · 8030 Preservative and Sealing Compounds (12) · 8040 Adhesives (19)

Group 81: Containers, Packaging, and Packing Supplies

8145 Specialized Shipping and Storage Containers (3)

Group 83: Textiles, Leather, Furs, Apparel and Shoe Findings, Tents and Flags

8315 Notions and Apparel Findings (3) · 8345 Flags and Pennants (4)

Group 84: Clothing, Individual Equipment, Insignia, and Jewelry

8415 Clothing, Special Purpose (13) · 8465 Individual Equipment (3)

Group 93: Nonmetallic Fabricated Materials

9320 Rubber Fabricated Materials (4) · 9330 Plastics Fabricated Materials (14)

Group 95: Metal Bars, Sheets, and Shapes

9505 Wire, Nonelectrical (5) · 9515 Plate, Sheet, Strip, Foil, and Leaf (3)

Group 99: Miscellaneous

9905 Signs, Advertising Displays, and Identification Plates (47)

Buying For A Government Agency Or Military Unit? See Government Sales for how we quote and ship to government buyers, or send a quote request below.

NSNs, item names and Federal Supply Class descriptions come from the Defense Logistics Agency's public Federal Logistics Information System data (PUB LOG, October 27, 2026 release). We show an NSN only when the government record lists our part number under the same manufacturer (CAGE code). Confirm the NSN and part number on your solicitation before you order.