Grooved Coupling Clamp 3A97001-115 Retainer 3 3/4" closed Self Locking USA 138E. New very old stock These Stainless Steel bad boys are dated 04/1965 very hard to come by. AAGR Cross-Sectional Shape Style Grooved retainer AARX Inside Diameter 4.636 inches nominal ADTJ Retainer Thickness 0.050 inches nominal AGPR Latch Style Single AKZZ Included Angle in DEG 40.0 ALDS Nut Type Self-locking hexagon ALDT Segment Quantity 3 ALDW Sealing Inner Liner Not included ALEB Retainer Width 0.720 inches nominal ALEC Root Width 0.212 inches nominal ALED Band Thickness 0.032 inches nominal ALEE Band Width 0.750 inches nominal ANNQ Material and Location Iron alloy, ams 5525, comp 660 band ANNQ Material and Location Iron alloy, ams 5525, comp 660 segment HGTH Height 0.280 inches nominal SHPE Shape Round Check out my other stores on Ebay, one of the largest inventories of "Creatology" and "Celebrate It" products from Michaels Stores more 1950's "pinup/model" pictures and Negatives. Bonanza has both my ebay stores combined into my Bonanza Booth, "DiscountCrafts4U", except the items I have listed in the "other" category on ebay that are not listed on Bonanza. Remember you can make an offer on any of my items on Bonanza by adding the item to your cart and then open the cart and click on the "make an offer" link. Be sure to check out all the freebies I have listed here on Bonanza too. My other 2 stores are: http://stores.ebay.com/Stargate-Cool-Stuff?_rdc=1 http://stores.ebay.com/Debbie-Dabbles?_rdc=1 You will not find better deals for the price anywhere. I combine ship on both stores to save you money. I have great feedback - fast ship - lots of other great stuff to check out. 3A97001115 5342-00-013-8966 Coupling, Clamp, Grooved Height: 0.280 inches nominal Inside Diameter: 4.636 inches nominal Cross-Sectional Shape Style: 1 grooved retainer Lockheed Martin Corporation (98897)