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Thread: door hinges prices

  1. #1

    door hinges prices

    I'd like to point out,(unless I'm mistaken)
    this part sells for $5.65

    http://www.aircraftspruce.com/catalo...pianohinge.php

    Jon


    --- In musketeermail@yahoogroups.com, "Jeff and Teresa Bryant"
    <jnt.bryant@v...> wrote:
    > I just replaced both left and right on mine. I bought Piano Hinge from
    > Aircraft Spruce. Part Number MS20257P4-3
    >
    > Worked real well and was not to hard to change. The Hinge is 1 1/2"
    wide and
    > mine were approx 3' long on each side. Be sure to measure so you get the
    > proper length.
    >
    > Jeff Bryant
    > Southwest Regional Director
    > Beech Aero Club
    >
    >
    > _____
    >
    > From: musketeermail@yahoogroups.com
    [mailto:musketeermail@yahoogroups.com]
    > On Behalf Of dick3496
    > Sent: Friday, April 29, 2005 7:55 PM
    > To: musketeermail@yahoogroups.com
    > Subject: [musketeermail] door hinges
    >
    >
    > I need to replace both door hinges on a 76 Sundowner. Does anyone have
    > a source and specs for the hinges?
    >
    > Richard Lowe
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    > Join BAC today and be a part of the ONLY Type Club for the Musketeer
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  2. #2

    door hinges prices

    Mike Rellihan has already given details on the original extruded hinge (NAS
    40) and its in the BAC archives if one will search for "door hinge".

    I was a Genuine Aircraft Hardware last week, and they had some NAS 40 on
    the shelf!

    http://www.beechaeroclub.com/modules...inge_Specs.pdf

    If yours was late enough to have rolled hinge (AN257), then it is a direct
    replacement. If not, you need approval to substitute it.

    Bob Steward A&P IA
    Birmingham, AL

    > I'd like to point out,(unless I'm mistaken)
    > this part sells for $5.65
    > http://www.aircraftspruce.com/catalo...pianohinge.php
    > Jon
    >
    >--- "Jeff and Teresa Bryant" <jnt.bryant@v...> wrote:
    > > I just replaced both left and right on mine. I bought Piano Hinge from
    > > Aircraft Spruce. Part Number MS20257P4-3
    >
    > > I need to replace both door hinges on a 76 Sundowner. Does anyone have
    > > a source and specs for the hinges?
    > > Richard Lowe




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  3. #3

    door hinges prices

    Please read the write-up on BAC related to piano hinge, for both the Stabilator tab and the doors; search on "NAS40" in BAC. The correct replacement hinge is NAS40 for the doors, and for the outboard six inches on both sides of the Stab tab. The center section of the tab has the MS20001. There is a reason why Beech used the NAS40 for the doors and the outer six inches of the tab; it is much stronger than the MS20001 hinge. If you hold the two side-by-side you'll see what I mean right away.

    In my opinion, the MS20257 hinge should not be used in any structural application on an aircraft. It is a rolled hinge that will have a relatively short lifespan in the presence of bending loads or vibration. It has comparatively little resistance to pulling loads, such as someone leaning on an open door. It is OK for things like small hinged access ports that are normally kept screwed shut. An oil door is a good example, though I use the MS20001 even for those. The originals were all extruded hinge. If they wear to the point of requiring replacement, I question the value of installing something with a known shorter lifespan.

    The extruded heavy-duty NAS40 hinge is still available from Genuine Aircraft Hardware in CA, at least in some sizes (flange widths). It is much more expensive than the MS20001, though still affordable. My personal recommendation is that you DO NOT order any of these replacement hinges from Beech. Sometime soon after Raytheon bought the company, overall spare parts quality began going downhill. Among many other things, their parts suppliers began producing replacement hinges for both doors and tab made from rolled hinge. I questioned Beech, but just got the runaround from the parts department. They declined to send me a copy of any engineering analysis that had demonstrated that the weaker rolled hinge was a satisfactory replacement for the extruded hinge that the planes were certified with, in structural applications. Since the NAS40 hinge material is "standard hardware", you thankfully have the option to obtain the proper hinge and install it.

    By the way, both the NAS40 and MS20001 can use the same hinge wire. That also helps illustrate the higher strength of the NAS40 stock. It is larger on the outside, but has the same hinge wire drilling on the inside as the MS20001.

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