Chris newton Posted February 9, 2021 Report Posted February 9, 2021 I am looking for a NAS6607-72D bolt. This is hard to find. Anybody have a good source for NAS bolts? Quote
carusoam Posted February 9, 2021 Report Posted February 9, 2021 Chris, What do you know about the bolt other than its part number? Or are you just looking for the list of aviation hardware suppliers? Skybolt is the easiest place to remember... Best regards, -a- Quote
PT20J Posted February 9, 2021 Report Posted February 9, 2021 LASAR used to stock them. I’d call them and ask where they get them. Skip Quote
Chris newton Posted February 9, 2021 Author Report Posted February 9, 2021 (edited) It’s the bolt for the nose gear.Laser has had them on order since July and still waiting. So I am looking for another source. Edited February 9, 2021 by Chris newton 1 Quote
N201MKTurbo Posted February 9, 2021 Report Posted February 9, 2021 I think it is the same as an AN7-50, Spruce has them. Quote
Steve2 Posted February 9, 2021 Report Posted February 9, 2021 Partsbase & controller.com https://www.controller.com/parts/search?SearchType=Start&PartNumber=nas6607-72 NAS6607-72D Southwest Aviation Specialties, LLC Email Only BOLT NS 1 RFQ OK, United States 01/08/2021 NAS6607-72D Air Nation, LLC 818-210-0069 BOLT NE 2725 RFQ CA, United States 02/08/2021 NAS6607-72D NULL Silverhawk Aviation 402-475-8600 BOLT NE 1 NE, United States 02/05/2021 NAS6607-72D R & M GOVERNMENT SERVICES, INC 575-522-0430 BOLT, NAS NE OR RFQ NM, United States 10/06/2020 NAS6607-72D US Aviation Group 940-297-6432 BOLT NE 1 RFQ TX, United States 04/24/2020 1 Quote
Steve2 Posted February 9, 2021 Report Posted February 9, 2021 (edited) They don't show stock but maybe a call to https://military-fasteners.com/search/?term=NAS6607-&page=1 Also Genuine Aircraft Hardware https://www.gen-aircraft-hardware.com/ ECAS which is now a part of Monroe Aerospace. My IPC shows NAS1307-72D; don't know is the 6607 supersedes the 1307, might be worth trying to search alternate part numbers. While none of these places show stock they may have an idea of how to find one. If NAS1307-72D is valid for your aircraft; partsbase shows stock available at 3 suppliers. NAS1307-72D Air Nation, LLC 818-210-0069 BOLT NE 2725 RFQ CA, United States 02/08/2021 NAS1307-72D Future Global Aerospace 866-778-8462 HARDWARE - FASTENERS NE 1490 RFQ NC, United States 02/02/2021 NAS1307-72D Genuine Aircraft Hardware Co. 805-239-3169 NAS BOLTS FN OR RFQ CA, United States 01/05/2021 NAS1307-72D R & M GOVERNMENT SERVICES, INC 575-522-0430 BOLT, NAS NE OR RFQ NM, United States 10/06/2020 NAS1307-72D VRG Components, Inc 704-970-1808 MISC FASTENERS NE OR RFQ NC, United States 10/07/2020 NAS1307-72D Aerospace Retail Inc. 888-918-8116 HARDWARE FN 1003 RFQ FL, United States 12/30/2020 Edited February 9, 2021 by Steve2 1 Quote
Steve2 Posted February 9, 2021 Report Posted February 9, 2021 As I understand it the NAS1307/6607 are a close tolerance bolt, the AN7 isn't so although it would fit, the fit wouldn't be as tight as originally designed. Quote
PT20J Posted February 9, 2021 Report Posted February 9, 2021 1 hour ago, Steve2 said: As I understand it the NAS1307/6607 are a close tolerance bolt, the AN7 isn't so although it would fit, the fit wouldn't be as tight as originally designed. According to the IPC, Mooney used an AN7-50 through SN 24-0678 and switched to a NAS1307-72D thereafter. I notice that military-fasteners.com also shows the NAS1307-72D as unavailable. You might install an AN7-50 for now and replace it when the close tolerance bolt becomes available. BTW, the maintenance manual calls for a torque of 450-500 in-lb. SIM20-109 reduced this to 270-300 in-lb to prevent binding. On mine, even that is too tight. We torqued it to 270 at annual and I had to back it off one castellation to get it to steer right. Skip 1 Quote
N201MKTurbo Posted February 9, 2021 Report Posted February 9, 2021 The truss should clamp on the bushing and there should be a little clearance top and bottom of the truss so the ears on the truss don't bind on the trunnion. The problem is if the bushing is loose in the truss, it can rotate in the truss and wear the ears on the truss so the bushing sinks into the ears and the top and bottom clearance goes away. This makes the truss ears bind on the trunnion tube. If you loosen the bolt, it allows more bushing motion and accelerates the wear. Short of replacing the truss, making a shim for the end of the bushing will fix this problem. Quote
MB65E Posted February 9, 2021 Report Posted February 9, 2021 Try Genuine aircraft hardware. They recently moved their operation from CA. But they have always been great to work with. -Matt Quote
PT20J Posted February 9, 2021 Report Posted February 9, 2021 32 minutes ago, N201MKTurbo said: The truss should clamp on the bushing and there should be a little clearance top and bottom of the truss so the ears on the truss don't bind on the trunnion. The problem is if the bushing is loose in the truss, it can rotate in the truss and wear the ears on the truss so the bushing sinks into the ears and the top and bottom clearance goes away. This makes the truss ears bind on the trunnion tube. If you loosen the bolt, it allows more bushing motion and accelerates the wear. Short of replacing the truss, making a shim for the end of the bushing will fix this problem. I've never had one of these apart, but your description sounds reasonable. There are no logbook entries indicating it's ever been torqued since it left the factory in 1994 so maybe it has and maybe it hasn't. Maxwell replaced the biscuits in 2017 for the previous owner, so maybe he checked it. It steered fine, and there is no slop in the bushing so I should probably have left well enough alone but since the manual says to check the torque every 100 hrs we torqued it and it started binding a little bit. The fact that Mooney lowered the torque indicates to me that the tolerance control on this isn't great. Skip 1 Quote
N201MKTurbo Posted February 9, 2021 Report Posted February 9, 2021 1 hour ago, PT20J said: I've never had one of these apart, but your description sounds reasonable. There are no logbook entries indicating it's ever been torqued since it left the factory in 1994 so maybe it has and maybe it hasn't. Maxwell replaced the biscuits in 2017 for the previous owner, so maybe he checked it. It steered fine, and there is no slop in the bushing so I should probably have left well enough alone but since the manual says to check the torque every 100 hrs we torqued it and it started binding a little bit. The fact that Mooney lowered the torque indicates to me that the tolerance control on this isn't great. Skip It is one of the easier things to take apart in a Mooney. If you take the cotter pin out to torque it, you are half way there. You might have to take the metal firewall plate off to get the bolt out, but once the bolt is out you will be holding most of the nose gear in your hands. Oh, you do have to take the bolt out of the steering horn. I will have to look to see if there is a an end play spec. I imagine it would be around 0.005" or more. 1 Quote
Mcstealth Posted February 10, 2021 Report Posted February 10, 2021 9 hours ago, PT20J said: According to the IPC, Mooney used an AN7-50 through SN 24-0678 and switched to a NAS1307-72D thereafter. I notice that military-fasteners.com also shows the NAS1307-72D as unavailable. You might install an AN7-50 for now and replace it when the close tolerance bolt becomes available. BTW, the maintenance manual calls for a torque of 450-500 in-lb. SIM20-109 reduced this to 270-300 in-lb to prevent binding. On mine, even that is too tight. We torqued it to 270 at annual and I had to back it off one castellation to get it to steer right. Skip Well crap. "castellation". I feel I am fairly well versed. I consider my spelling, grammar and dictation better than average. Then what happens? You damn engineers start talking in tounges. grrrrrrr 1 Quote
carusoam Posted February 10, 2021 Report Posted February 10, 2021 For David... Castellated nut... and other castle... aka rook... one castlelation... 1/6 of a turn... ? PP guessing only... not breaking out any of the engineering degrees... -a- 1 Quote
PT20J Posted February 10, 2021 Report Posted February 10, 2021 22 minutes ago, Mcstealth said: Well crap. "castellation". I feel I am fairly well versed. I consider my spelling, grammar and dictation better than average. Then what happens? You damn engineers start talking in tounges. grrrrrrr Probably not the right word, but I didn't know what else to call it Quote
Mcstealth Posted February 10, 2021 Report Posted February 10, 2021 11 hours ago, PT20J said: Probably not the right word, but I didn't know what else to call it No. You were good. After reading two different published definitions, " a cut or groove" was the second meaning in the definitions. Quote
Mcstealth Posted February 10, 2021 Report Posted February 10, 2021 11 hours ago, carusoam said: For David... Castellated nut... Perfect. Makes total sense. Thank you. 1 Quote
jaylw314 Posted February 10, 2021 Report Posted February 10, 2021 13 hours ago, PT20J said: Probably not the right word, but I didn't know what else to call it I liked it, I'm going to use that word from now on! Quote
ujhan Posted March 4, 2021 Report Posted March 4, 2021 Hi Chris, not sure if you still need the bolt- RACQWA @ jandakot in WA Australia has 2 more in stock. I ordered one today. Quote
A64Pilot Posted March 4, 2021 Report Posted March 4, 2021 (edited) Going off of memory a NAS bolt is not a close tolerance bolt. ‘However the difference between an AN and NAS is that the NAS is significantly stronger OK, looked it up an AN bolt is 125,000 tensile strength an NAS is 160,000 both can be close tolerance, if they are they have a triangle on the head. Edited March 4, 2021 by A64Pilot 2 Quote
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