Are you looking to have helicopter rotor drive system parts and delivered it by today or tomorrow? Our team here at Unlimited NSN can help. Unlimited NSN is one of the leading U.S. distributors of helicopter rotor drive system parts and other new, old, or obsolete aviation parts, including NAS620-10L, A141-11, A130-39, B158-3, C170-3. Owned and operated by ASAP Semiconductor, Unlimited NSN has sold 100 million parts to date. ASAP Semiconductor is an ISO 9001:2015 certified company with an FAA AC-056B accreditation, and is also a member of the Aviation Suppliers Association (ASA).
We are proud to offer an inventory of over two billion ready-to-ship aircraft and helicopter rotor drive system parts, 24/7 availability, and key locations in the United States, United Kingdom, and Canada. These attributes allow us to meet all aircraft on ground (AOG) requirements with ease. Use our optimized search engine to find your required helicopter rotor drive system parts then submit an instant RFQ for a quick, competitive quote. Here at Unlimited NSN, we make your purchasing process as simple and efficient as possible.
| Part No | Description | RFQ |
|---|---|---|
| NAS620-10L | Washer | RFQ |
| A141-11 | Washer | RFQ |
| A130-39 | Spacer | RFQ |
| B158-3 | Heat Shrink (around wires, terminals) | RFQ |
| C170-3 | Sheave - Upper (metalized) | RFQ |
| B033-6 | Knob Assembly (includes knob and chain) | RFQ |
| C130-4 | Spacer | RFQ |
| C191-5 | Stop | RFQ |
| C020-1 | Upper Frame | RFQ |
| C006-8R* | C006-8 Main Rotor Gearbox and Mast Assembly | RFQ |
| D774-4 | Spring (Associated Spring part no. C0420-063-2000S) | RFQ |
| NAS6603-28 | Bolt | RFQ |
| NAS1149F0632P* | Washer | RFQ |
| B158-12 | Heat Shrink | RFQ |
| NAS1149F0463P | Washer | RFQ |
| NAS1304-15 | Bolt | RFQ |
| AN960PD416L | Washer | RFQ |
| NAS9301B-4-02 | Rivet | RFQ |
| D123-1 | Arm Assembly - Lower | RFQ |
| MS21042L4 | Nut | RFQ |
| NAS6603-10 | Bolt | RFQ |
| AN742-3 | Clamp | RFQ |
| NAS1149F0432P | Washer (or NAS1149F0463P to fill gap) | RFQ |
| A141-27 | Washer | RFQ |
| C907 | Yoke | RFQ |
| B263-1 | Pin | RFQ |
| C168-5 | Retainer | RFQ |
| MS27039C0812 | Screw | RFQ |
| B158-8 | Heat Shrink | RFQ |
| A257-4 | Oil - Type “A” ATF (Dexron III) | RFQ |
| C130-21 | Spacer | RFQ |
| 5541K11 | Pipe Wrap (self-adhesive) | RFQ |
| AN526C832R6 | Screw | RFQ |
| C796-2 | Shim (3 maximum per aft pad) | RFQ |
| C184-2 | Bearing Assembly - Upper | RFQ |
| MS27039C1-07 | Screw | RFQ |
| 220-242400-09 | Clip | RFQ |
| AN316-5R | Nut | RFQ |
| A654-56 | Decal | RFQ |
| D174-2 | Fanwheel Assembly | RFQ |
| C191-1 | Block | RFQ |
| C018-3* | Clutch Assembly | RFQ |
| C105-2 | Journal | RFQ |
| C006-2 | Rotor Brake Assembly | RFQ |
| C049-4 | Harness Assembly | RFQ |
| B350-3 | Spring Pin | RFQ |
| NAS1149FN816P | Washer | RFQ |
| D049-4 | Harness Assembly | RFQ |
| A215-382 | O-Ring (use only with C263-2 sump) | RFQ |
| B158-6 | Heat Shrink (around fuse holder) | RFQ |
| C146-1 | Gear Set | RFQ |
| C215-279 | O-Ring (use only with C263-1 sump) | RFQ |
| A185-1 | Bracket | RFQ |
| NAS620-4 | Washer | RFQ |
| AGC-1.5 | Fuse (1.5 amp, for 28-volt ships) | RFQ |
| MS21042L3 | Nut | RFQ |
| MS24566-1B | Pulley (or AN210-1A) | RFQ |
| B158-2 | Heat Shrink | RFQ |
| A653-2* | Mount (supersedes A653-1; if replacing a -1 mount replace both forward mounts) | RFQ |
| NAS1149F0632P | Washer | RFQ |
| MS20995C32 | 0.032 in. dia. Safety Wire | RFQ |
| A257-2 | Oil - Gearbox (one-gallon bottle) | RFQ |
| C006-6* | Main Rotor Gearbox and Mast Assembly | RFQ |
| MS27039C1-11 | Screw | RFQ |
| MS21042L06 | Nut | RFQ |
| C261-1 | Mast Fairing Assembly | RFQ |
| R8206 | C283-3 Mast Tube Upgrade Kit | RFQ |
| 110-3 | Telatemp (temperature recorder 180°-230°F) | RFQ |
| C007 | Shaft and Bearing Assembly | RFQ |
| C244-1 | Bracket | RFQ |
| MS35206-228 | Screw | RFQ |
| C051-1R | C051-2 Actuator Assembly (overhaul exchange) | RFQ |
| C167-5 | Housing | RFQ |
| A185-3 | Plate | RFQ |
| C966-3 | Seal | RFQ |
| MS24665-134 | Cotter Pin | RFQ |
| A344-2 | Strut | RFQ |
| MS21042L08 | Nut | RFQ |
| B570-1 | Magnet Assembly | RFQ |
| E0240-037-3500S | Spring | RFQ |
| B125-2 | Connector | RFQ |
| C653-3* | Mount | RFQ |
| MS27039C1-09 | Screw | RFQ |
| C251-2 | Shaft - Main Rotor Drive | RFQ |
| A938-5 | Mount - Test Switches | RFQ |
| A650-4 | Fitting | RFQ |
| NAS6604-11 | Bolt | RFQ |
| D111-1 | Bracket | RFQ |
| NAS1149F0332P | Washer | RFQ |
| B033-6 | Knob Assembly - Rotor Brake | RFQ |
| D210-10 | Nut | RFQ |
| B330-16 | Palnut | RFQ |
| C166-4 | Shaft - Clutch | RFQ |
| NAS6604-13 | Bolt | RFQ |
| MS21042L6 | Nut | RFQ |
| MS20002-24 | Washer (against hub) | RFQ |
| C908-1 | Yoke Assembly | RFQ |
| D174-2R | D174-2 Fanwheel Assembly (overhaul exchange) | RFQ |
| NAS428-3-14 | Bolt | RFQ |
| NAS6603-24 | Bolt | RFQ |
| AN320-8 | Nut (B270-11 on threads) | RFQ |
| AGC-3 | Fuse (3 amp, for 14-volt ships) | RFQ |
| B158-8 | Heat Shrink (14-volt ships) | RFQ |
| C273-1 | Roof | RFQ |
| NAS1149F0432P | Washer | RFQ |
| B330-13 | Palnut | RFQ |
| NAS6605-38 | Bolt | RFQ |
| C647-1 | Bearing (main rotor shaft upper bearing) | RFQ |
| A215-222 | O-Ring | RFQ |
| A215-017 | O-Ring | RFQ |
| D122-6 | Plate | RFQ |
| MS21042L04 | Nut | RFQ |
| B157-1 | Mount | RFQ |
| C251-1 | Shaft - Main Rotor Drive | RFQ |
| C238-23 | Support | RFQ |
| D210-4 | Nut | RFQ |
| C181-3 | Bearing | RFQ |
| C170-2 | Sheave - Upper (anodized) | RFQ |
| D210-3 | Nut | RFQ |
| A796-1 | Shim (3 maximum per fwd pad) | RFQ |
| D113-1 | Link | RFQ |
| C051-1R | C051-1 Actuator Assembly (overhaul exchange) | RFQ |
| NAS1149F1063P | Washer | RFQ |
| C967-1 | Plug | RFQ |
| NAS6603-8 | Bolt | RFQ |
| D118-1 | Bracket Assembly | RFQ |
| V3-1001 | Switch (use B158-2 or -3 around terminals) | RFQ |
| A185-2 | Bracket | RFQ |
| C006-1 or -3 | Main Rotor Gearbox and Mast Assembly | RFQ |
| NAS6608H42 | Bolt | RFQ |
| F283-3 | Mast Assembly | RFQ |
| C007-5R | C007-5 Shaft and Bearing Assembly (overhaul exchange) | RFQ |
| A130-40 | Spacer | RFQ |
| A130-41 | Spacer | RFQ |
| C130-3 | Spacer | RFQ |
| A130-14 | Spacer | RFQ |
| C257-2 | Cover | RFQ |
| C192-1 | Spacer | RFQ |
| NAS620-6 | Washer | RFQ |
| 012C | O-Ring | RFQ |
| NAS6606-5 | Bolt | RFQ |
| D276-1 | Gearmotor Assembly (14-volt ships) . | RFQ |
| MS20995C41 | 0.041 in. dia. Safety Wire | RFQ |
| C195 | Yoke | RFQ |
| C648-2 | Bearing - Journal | RFQ |
| D113-2 | Link | RFQ |
| D126-1 | Cable Assembly | RFQ |
| MS24566-1B | Pulley (supersedes AN210-1A) | RFQ |
| A141-21 | Washer | RFQ |
| NAS1352-08LE6P | Screw | RFQ |
| D123-1 | Arm Assembly | RFQ |
| MS21075L3E | Nutplate | RFQ |
| A257-2LT | Oil - Gearbox (one-liter bottle) | RFQ |
| C796-3 | Spacer | RFQ |
| D276-3 | Gearmotor Assembly (28-volt ships) . | RFQ |
| C284-1 | Tube Assembly - Swashplate | RFQ |
| C007-5 | Shaft and Bearing Assembly (Incl C181-3 lower bearing) | RFQ |
| C168-4 | Retainer | RFQ |
| B270-10 | Adhesive | RFQ |
| C907-1 | Yoke (shaft length - 2.76 in.) | RFQ |
| B320-2 | Sender Assembly | RFQ |
| C049-5 | Harness Assembly - Overtemp Switch | RFQ |
| A938-3 | Mount - Test Switches | RFQ |
| D214-2 | Washer (install with counterbore toward journal) | RFQ |
| D110-1 | Arm Assembly - Upper | RFQ |
| D112-1 | Lever | RFQ |
| C966-5 | Seal | RFQ |
| C283-1 | Mast Assembly | RFQ |
| C270-1 | End Cover | RFQ |
| C141-10 | Washer | RFQ |
| NAS1352-4-16 | Screw | RFQ |
| AN814-8D | Filler Plug | RFQ |
| AN3-41A | Bolt | RFQ |
| C051-1 | Actuator Assembly (14-volt ships) | RFQ |
| B563-2 | Sight Gage | RFQ |
| C051-2 | Actuator Assembly (28-volt ships) | RFQ |
| B263-2 | Socket | RFQ |
| C493-1 | Sheave - Lower | RFQ |
| MS20470AD4 | Rivet | RFQ |
| A215-042 | O-Ring | RFQ |
| A7260 | Chip Detector | RFQ |
| B330-19 | Palnut | RFQ |
| C273-1 | Roof Panel | RFQ |
| A215-029 | O-Ring | RFQ |
| B263-12 | Housing (14-volt ships) | RFQ |
| NAS6603-40 | Bolt | RFQ |
| NAS1352-4-12 | Screw | RFQ |
| B263-3 | Pin | RFQ |
| A101-4 | Rod End | RFQ |
| NAS1149F2432P | Washer | RFQ |
| C747-1 | Baffle Assembly | RFQ |
| C006-8* | Main Rotor Gearbox and Mast Assembly | RFQ |
| MS20426AD4 | Rivet (at outboard positions) | RFQ |
| B115-1 | Bearing | RFQ |
| MS3367-5-9 | Ty-Rap | RFQ |
| C238-23 | Support - Roof | RFQ |
| C018-2R | C018-2 Clutch Assembly (overhaul exchange; includes new C166-4 shaft) | RFQ |
| A215-020 | O-Ring | RFQ |
| C146-5 | Gear Set | RFQ |
| MS21042L5 | Nut | RFQ |
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