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Posted: 12/20/2014 5:21:17 PM EDT
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Does anyone know if the snap ring in the Delta assembly is of special dimensions, or is it just a big ass snap ring? I have one that is fubar, and I'm thinking of taking to the local auto parts store or ace hardware to see if I can match it.
Note:: I have one of Harbor Freight snap ring collections, you know, four of five bucks for an assortment. I checked, and there are some the right diameter, but they are too thick to fit into the slot. Thing is, Harbor Freight crap is known for out of the norm, out of spec junk, so I thought it's possible that quality "same size" snap ring fro NAPA or Ace might not be so thick and might work. Anybody know? |
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If you want to find a matching retaining spring, here are the dimensions. The actual retaining spring will be one that meets the Military Standard (MS) which is also the part number.
Part# MS16626-1137 Retaining Ring Notes: Ring Material: Carbon Spring Steel (SAE 1060-1090). Shear Strength of Ring Material (Ss): 150,000 psi.  
Ring Specs (D) Free Diameter:1.272 +0.010 / -0.015 in. (t) Thickness:0.050 +0.002 / -0.002 in. Groove Specs: (B) Application Diameter:1.375 in. (G) Groove Diameter:1.291 +0.004 / -0.004 in. (W) Groove Width:0.056 +0.004 / -0.000 in. Groove Depth:0.042 in. Other Specs (C) Clearance Diameter When Sprung On To Shaft: 1.730 in. (C1) Clearance Diameter When Sprung Into Groove: 1.650 in. (Pg) Theoretical Thrust Load Capacity - Groove Yield: 2,040 lbs. Notes: Yield Strength of Groove Material (Ys): 45,000 psi. (Pr) Theoretical Thrust Load Capacity - Ring Shear: 5,399 lbs. |
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Quoted:
If you want to find a matching retaining spring, here are the dimensions. The actual retaining spring will be one that meets the Military Standard (MS) which is also the part number. Part# MS16626-1137 Retaining Ring Notes: Ring Material: Carbon Spring Steel (SAE 1060-1090). Shear Strength of Ring Material (Ss): 150,000 psi. http://i1286.photobucket.com/albums/a601/AVIDavid1982/Mobile%20Uploads/photo_zpsd57365c8.jpghttp://i1286.photobucket.com/albums/a601/AVIDavid1982/Mobile%20Uploads/photo_zps3b6fd380.jpg Ring Specs (D) Free Diameter:1.272 +0.010 / -0.015 in. (t) Thickness:0.050 +0.002 / -0.002 in. Thanks, much appreciated. Groove Specs: (B) Application Diameter:1.375 in. (G) Groove Diameter:1.291 +0.004 / -0.004 in. (W) Groove Width:0.056 +0.004 / -0.000 in. Groove Depth:0.042 in. Other Specs (C) Clearance Diameter When Sprung On To Shaft: 1.730 in. (C1) Clearance Diameter When Sprung Into Groove: 1.650 in. (Pg) Theoretical Thrust Load Capacity - Groove Yield: 2,040 lbs. Notes: Yield Strength of Groove Material (Ys): 45,000 psi. (Pr) Theoretical Thrust Load Capacity - Ring Shear: 5,399 lbs. |
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As a side note: The one I have that is no longer serviceable is from some no name Delta ring assembly. It is NOT made of "spring steel". Probably chinease crap steel. Can't remember where I bought it. It was cheap though. Amazon? Don't know.
If a NAPA snap ring would fit, should be good quality. Ace hardware small stuff, a lot of it is from China. Prolly wouldn't trust. |
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http://www.dsarms.com/p-13891-ar15zm4-handguard-snap-ring.aspx Snap ring is $1 and shipping is $4 up to $100. |
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Quoted:
http://www.dsarms.com/p-13891-ar15zm4-handguard-snap-ring.aspx Snap ring is $1 and shipping is $4 up to $100. Thanks. That's not too bad. |
| Too bad TheCitizensArmory is out of stock. Their shipping would have likely been less than a buck. |
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