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 MS24566-1B, B158-6, B330-16, A257-2, MS35206-219. 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 |
|---|---|---|
| MS24566-1B | Pulley (or AN210-1A) | RFQ |
| B158-6 | Heat Shrink (around fuse holder) | RFQ |
| B330-16 | Palnut | RFQ |
| A257-2 | Oil - Gearbox (one-gallon bottle) | RFQ |
| MS35206-219 | Screw | RFQ |
| C966-5 | Seal | RFQ |
| 012C | O-Ring | RFQ |
| D276-1 | Gearmotor Assembly (14-volt ships) . | RFQ |
| A215-382 | O-Ring (use only with C263-2 sump) | RFQ |
| A141-11 | Washer | RFQ |
| NAS6603-12 | Bolt | RFQ |
| NAS1149F0432P | Washer (or NAS1149F0463P to fill gap) | RFQ |
| D123-1 | Arm Assembly - Lower | RFQ |
| B263-4 | Socket | RFQ |
| B350-3 | Spring Pin | RFQ |
| A185-1 | Bracket | RFQ |
| C049-2 | Harness Assembly | RFQ |
| NAS1149F0632P* | Washer | RFQ |
| NAS1149F0432P | Washer | RFQ |
| A185-5 | Bracket | RFQ |
| 01960 | Bead Chain | RFQ |
| MS20995C41 | 0.041 in. dia. Safety Wire | RFQ |
| 5541K11 | Pipe Wrap (self-adhesive) | RFQ |
| NAS1149D0316J | Washer | RFQ |
| C184-2 | Upper Bearing Assembly | RFQ |
| C006-2 | Rotor Brake Assembly | RFQ |
| C018 | Clutch Assembly | RFQ |
| B330-13 | Palnut | RFQ |
| A654-56 | Decal | RFQ |
| AN316-5R | Nut | RFQ |
| D117-1 | Guard | RFQ |
| A141-21 | Washer | RFQ |
| NAS6604-11 | Bolt | RFQ |
| D500-1 | Pump | RFQ |
| C192-1 | Spacer | RFQ |
| MS20470AD4 | Rivet | RFQ |
| A938-5 | Mount - Test Switches | RFQ |
| A190-3 | V-Belts (matched set of four banded belts) | RFQ |
| B115-1 | Bearing | RFQ |
| C284-1 | Tube Assembly - Swashplate | RFQ |
| NAS9301B-4-02 | Rivet | RFQ |
| D118-1 | Bracket Assembly | RFQ |
| C051-1R | C051-2 Actuator Assembly (overhaul exchange) | RFQ |
| C018-3R | C018-3 Clutch Assembly (overhaul exchange; includes new C166-4 shaft) | RFQ |
| C270-1 | End Cover | RFQ |
| B161-4 | Spirap | RFQ |
| B289-3 | Screw | RFQ |
| C967-1 | Plug | RFQ |
| B263-15 | Housing | RFQ |
| 110-3 | Telatemp (temperature recorder 180°-230°F) | RFQ |
| B263-18* | Housing | RFQ |
| A267-1 | Washer | RFQ |
| C257-2 | Cover | RFQ |
| C251-1 | Shaft - Main Rotor Drive | RFQ |
| MS24665-134 | Cotter Pin | RFQ |
| B158-12 | Heat Shrink | RFQ |
| MS21042L6 | Nut | RFQ |
| AN960PD416L | Washer | RFQ |
| E0240-037-3500S | Spring | RFQ |
| NAS1352-4-12 | Screw | RFQ |
| B158-2 | Heat Shrink | RFQ |
| D122-6 | Plate | RFQ |
| KI-202 | Retainer Upgrade Kit | RFQ |
| C263-1 | Sump (requires C215-279 o-ring) | RFQ |
| D123-1 | Arm Assembly | RFQ |
| D111-1 | Bracket | RFQ |
| A215-020 | O-Ring | RFQ |
| NAS6608H42 | Bolt | RFQ |
| D114-1 | Bracket | RFQ |
| C215-029 | O-Ring (lubricate with A257-1 grease) | RFQ |
| C006-7* | Main Rotor Gearbox and Mast Assembly | RFQ |
| NAS1149F2432P | Washer | RFQ |
| A215-029 | O-Ring | RFQ |
| C553-1 | Block | RFQ |
| C796-2 | Shim (3 maximum per aft pad) | RFQ |
| MS27039C0806 | Screw | RFQ |
| C264-1 | Housing | RFQ |
| B263-3 | Pin | RFQ |
| C966-3 | Seal | RFQ |
| C105-2 | Journal | RFQ |
| NAS428-3A-14 | Bolt | RFQ |
| NAS1149F0632P | Washer | RFQ |
| C130-4 | Spacer | RFQ |
| C283-1 | Mast Assembly | RFQ |
| C182-1 | Nut | RFQ |
| C184-2R | C184-2 Bearing Assembly - Upper (overhaul exchange) | RFQ |
| NAS6603-28 | Bolt | RFQ |
| D112-1 | Lever | RFQ |
| C238-23 | Support | RFQ |
| NAS620-6 | Washer | RFQ |
| C184-2 | Bearing Assembly - Upper | RFQ |
| A130-40 | Spacer | RFQ |
| C018-2R | C018-2 Clutch Assembly (overhaul exchange; includes new C166-4 shaft) | RFQ |
| B263-2 | Socket | RFQ |
| B263-14 | Housing (28-volt ships) | RFQ |
| AN814-8D | Filler Plug | RFQ |
| MS27039C0812 | Screw | RFQ |
| BP4100 | Pulley | RFQ |
| D049-4 | Harness Assembly | RFQ |
| NAS1149FN816P | Washer | RFQ |
| C907-1 | Yoke (shaft length - 2.76 in.) | RFQ |
| C146-1 | Gear Set | RFQ |
| D774-4 | Spring (Associated Spring part no. C0420-063-2000S) | RFQ |
| MS20995C32 | 0.032 in. dia. Safety Wire | RFQ |
| C907 | Yoke | RFQ |
| NAS6606-5 | Bolt | RFQ |
| C166-4 | Shaft - Clutch | RFQ |
| D210-3 | Nut | RFQ |
| C049-4 | Harness Assembly | RFQ |
| B566-1* | Chip Detector | RFQ |
| NAS6603-40 | Bolt | RFQ |
| A130-41 | Spacer | RFQ |
| D174-2 | Fanwheel Assembly | RFQ |
| C907-2 | Yoke (shaft length - 2.90 in.) | RFQ |
| NAS1352-08LE6P | Screw | RFQ |
| MS21042L5 | Nut | RFQ |
| C170-2 | Sheave - Upper (anodized) | RFQ |
| AN320-8 | Nut (B270-11 on threads) | RFQ |
| NAS428-3-14 | Bolt | RFQ |
| D126-1 | Cable Assembly | RFQ |
| C747-1 | Baffle Assembly | RFQ |
| MS21042L08 | Nut | RFQ |
| C251-2 | Shaft - Main Rotor Drive | RFQ |
| D276-3 | Gearmotor Assembly (28-volt ships) . | RFQ |
| C007-5R | C007-5 Shaft and Bearing Assembly (overhaul exchange) | RFQ |
| NAS1149F0532P | Washer | RFQ |
| MS21042L3 | Nut | RFQ |
| A215-152 | O-Ring | RFQ |
| C051-1 | Actuator Assembly (14-volt ships) | RFQ |
| NAS620-8 | Washer | RFQ |
| C141-10 | Washer | RFQ |
| A215-222 | O-Ring | RFQ |
| C947-1 | Flex Plate Assembly | RFQ |
| B263-19* | Housing | RFQ |
| C006-8R* | C006-8 Main Rotor Gearbox and Mast Assembly | RFQ |
| NAS620-10L | Washer | RFQ |
| D174-2R | D174-2 Fanwheel Assembly (overhaul exchange) | RFQ |
| C170-3 | Sheave - Upper (metalized) | RFQ |
| C266-1 | Spacer | RFQ |
| C215-279 | O-Ring (use only with C263-1 sump) | RFQ |
| A653-2* | Mount (supersedes A653-1; if replacing a -1 mount replace both forward mounts) | RFQ |
| MS20002-24 | Washer (against hub) | RFQ |
| D262-11 | Fuse Holder | RFQ |
| B270-10 | Adhesive | RFQ |
| C018-2* | Clutch Assembly | RFQ |
| F283-3 | Mast Assembly | RFQ |
| MS20002-4 | Washer | RFQ |
| B570-1 | Magnet Assembly | RFQ |
| MS21042L04 | Nut | RFQ |
| R8206 | C283-3 Mast Tube Upgrade Kit | RFQ |
| C648-2 | Bearing - Journal | RFQ |
| A938-3 | Mount - Test Switches | RFQ |
| C195 | Yoke | RFQ |
| A130-39 | Spacer | RFQ |
| C007-5 | Shaft and Bearing Assembly (Incl C181-3 lower bearing) | RFQ |
| D796-1 | Duct Assembly | RFQ |
| A215-042 | O-Ring | RFQ |
| C130-21 | Spacer | RFQ |
| C006-6* | Main Rotor Gearbox and Mast Assembly | RFQ |
| MS20074-04-04 | Bolt (earlier non-hydraulic R44s) | RFQ |
| A796-1 | Shim (3 maximum per fwd pad) | RFQ |
| C493-1 | Sheave - Lower | RFQ |
| MS24566-1B | Pulley (supersedes AN210-1A) | RFQ |
| C263-2 | Sump (requires A215-222 o-ring) | RFQ |
| B033-6 | Knob Assembly - Rotor Brake | RFQ |
| A101-4 | Rod End | RFQ |
| C191-1 | Block | RFQ |
| B270-2 | Sealant - Metal (silver) | RFQ |
| NAS6603-11 | Bolt | RFQ |
| NAS6603-24 | Bolt | RFQ |
| C345-1 | Strut Weldment | RFQ |
| C053-2 | Switches Assembly | RFQ |
| MS24665-283 | Cotter Pin | RFQ |
| B320-2 | Sender Assembly | RFQ |
| D122-1 | Bracket Assembly | RFQ |
| NAS1352-4-16 | Screw | RFQ |
| C647-1 | Bearing (main rotor shaft upper bearing) | RFQ |
| NAS6606-31 | Bolt | RFQ |
| D774-4 | Spring (alternate part no. C0420-063-2000S) | RFQ |
| C653-3* | Mount | RFQ |
| AN742-3 | Clamp | RFQ |
| A7260 | Chip Detector | RFQ |
| MS20426AD4 | Rivet (at outboard positions) | RFQ |
| MS20426AD3 | Rivet | RFQ |
| C908-1 | Yoke | RFQ |
| C167-5 | Housing | RFQ |
| C007 | Shaft and Bearing Assembly | RFQ |
| NAS6603-8 | Bolt | RFQ |
| C796-3 | Spacer | RFQ |
| A215-017 | O-Ring | RFQ |
| A215-156 | O-Ring | RFQ |
| 31M22972* | Engine Starter Ring Gear Assembly (supersedes LW-16471* and 31M21951* starter ring gear assembly used on O-540 engine) | RFQ |
| NAS620-4 | Washer | RFQ |
| C130-3 | Spacer | RFQ |
| C244-1 | Bracket | RFQ |
| B157-1 | Mount | RFQ |
| C908-1 | Yoke Assembly | RFQ |
| MS35206-228 | Screw | RFQ |
| C049-5 | Harness Assembly - Overtemp Switch | RFQ |
| MS21075L3E | Nutplate | RFQ |
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